List of cutaneous conditions

Acneiform eruptions

Acneiform eruptions are caused by changes in the pilosebaceous unit.

Acne aestivalis (Mallorca acne)

Acne conglobata

Acne cosmetica (Cosmetic acne)

Acne fulminans (Acute febrile ulcerative acne)

Acne keloidalis nuchae (Acne keloidalis, Dermatitis papillaris capillitii, Folliculitis keloidalis, Folliculitis keloidis nuchae, Nuchal keloid acne)

Acne mechanica

Acne medicamentosa

Acne miliaris necrotica (Acne varioliformis)

Acne vulgaris

 

 

Acne vulgaris

Acne with facial edema (Solid facial edema)

Blepharophyma

Erythrotelangiectatic rosacea (Erythematotelangiectatic rosacea, Vascular rosacea)

Excoriated acne (Acne excoriée des jeunes filles, Picker’s acne)

Glandular rosacea

Gnathophyma

Gram-negative rosacea

Granulomatous facial dermatitis

Granulomatous perioral dermatitis

Halogen acne

Hidradenitis suppurativa (Acne inversa, Pyoderma fistulans significa, Verneuil’s disease)

Idiopathic facial aseptic granuloma

Infantile acne

Lupoid rosacea (Granulomatous rosacea, Micropapular tuberculid, Rosacea-like tuberculid of Lewandowsky)

Lupus miliaris disseminatus faciei

Metophyma

Neonatal acne (Acne infantum, Acne neonatorum, Neonatal cephalic pustulosis)

Occupational acne

Oil acne

Ocular rosacea (Ophthalmic rosacea, Ophthalmorosacea)

Otophyma

Periorificial dermatitis

Persistent edema of rosacea (Chronic upper facial erythematous edema, Morbihan’s disease, Rosaceous lymphedema)

Phymatous rosacea

Pomade acne

Papulopustular rosacea (Inflammatory rosacea)

Perifolliculitis capitis abscedens et suffodiens (Dissecting cellulitis of the scalp, Dissecting folliculitis, Perifolliculitis capitis abscedens et suffodiens of Hoffman)

Perioral dermatitis

Periorbital dermatitis (Periocular dermatitis)

Pyoderma faciale (Rosacea fulminans)

Rhinophyma

Rosacea (Acne rosacea)

Rosacea conglobata

Synovitis–acne–pustulosis–hyperostosis–osteomyelitis syndrome (SAPHO syndrome)

Steroid rosacea

Tar acne

Tropical acne

Autoinflammatory syndromes

Autoinflammatory syndromes are a group of inherited disorders characterized by bouts of inflammatory skin lesions and periodic fevers.^[28][29]

 

 

Blau syndrome

Chronic infantile neurologic cutaneous and articular syndrome

Familial cold urticaria (Familial cold autoinflammatory syndrome)

Familial Mediterranean fever

Hyper-IgD syndrome^{[nb 7]}

Majeed syndrome

Muckle–Wells syndrome

TNF receptor associated periodic syndrome (Familial Hibernian fever, TRAPS, Tumor necrosis factor receptor associated periodic syndrome)

Chronic blistering

Chronic blistering cutaneous conditions have a prolonged course and present with vesicles and bullae.^[30][31][32]

Adult linear IgA disease

Bullous pemphigoid

Childhood linear IgA disease (Chronic bullous disease of childhood)

Cicatricial pemphigoid (Benign mucosal pemphigoid, Benign mucous membrane pemphigoid, Ocular pemphigus, Scarring pemphigoid)

Dermatitis herpetiformis (Duhring disease)

Endemic pemphigus (Endemic pemphigus foliaceus, Fogo selvagem)

Epidermolysis bullosa acquisita

Grover’s disease (Benign papular acantholytic dermatosis, Persistent acantholytic dermatosis, Transient acantholytic dermatosis)

 

 

Grover’s disease

IgA pemphigus

Intraepidermal neutrophilic IgA dermatosis

Localized cicatricial pemphigoid (Brunsting–Perry cicatricial pemphigoid)

Paraneoplastic pemphigus

Pemphigus erythematosus (Senear–Usher syndrome)

Pemphigus foliaceus

Pemphigus herpetiformis (Acantholytic herpetiform dermatitis, Herpetiform pemphigus, Mixed bullous disease, Pemphigus controlled by sulfapyridine)

Pemphigoid nodularis

Pemphigus vegetans

Pemphigus vegetans of Hallopeau

Pemphigus vegetans of Neumann

Pemphigus vulgaris

Vesicular pemphigoid

Vulvar childhood pemphigoid

Conditions of the mucous membranes

Conditions of the mucous membranes involve the moist linings of the eyes, nose, mouth, genitals, and anus.^[33]

Acatalasia (Acatalasemia, Takahara’s disease)

Acquired dyskeratotic leukoplakia

Actinic cheilitis (Actinic cheilosis)

Acute necrotizing ulcerative gingivitis (Acute membranous gingivitis, Acute necrotizing ulcerative gingivostomatitis, Fusospirillary gingivitis, Fusospirillosis, Fusospirochetal gingivitis, Necrotizing gingivitis, Phagedenic gingivitis, Trench mouth, Ulcerative gingivitis, Vincent gingivitis, Vincent infection, Vincent stomatitis, Vincent’s disease)

Allergic contact cheilitis

 

Black hairy tongue

Angina bullosa haemorrhagica

Angular cheilitis (Perlèche)

Behçet’s disease (Behçet’s syndrome, Oculo-oral-genital syndrome)

Black hairy tongue (Hairy tongue, Lingua villosa nigra)

Caviar tongue

Cheilitis exfoliativa

Cheilitis glandularis

Cheilitis granulomatosa (Granulomatous cheilitis, Orofacial granulomatosis)

Cutaneous sinus of dental origin (Dental sinus)

Cyclic neutropenia

Desquamative gingivitis

Drug-induced ulcer of the lip

Epidermization of the lip

Epulis

Epulis fissuratum (Granuloma fissuratum)

Eruptive lingual papillitis

Erythroplakia (Erythroplasia)

Fissured tongue (Furrowed tongue, Lingua plicata, Plicated tongue, Scrotal tongue)

Geographic tongue (Benign migratory glossitis, Benign migratory stomatitis, Glossitis areata exfoliativa, Glossitis areata migrans, Lingua geographica, Stomatitis areata migrans, Transitory benign plaques of the tongue)

Gingival fibroma

Gingival hypertrophy

Hairy leukoplakia (Oral hairy leukoplakia)

Intraoral dental sinus

Leukoplakia

Leukoplakia with tylosis and esophageal carcinoma

Major aphthous ulcer (Periadenitis mucosa necrotica recurrens)

Median rhomboid glossitis (Central papillary atrophy)

Melanocytic oral lesion

Melkersson–Rosenthal syndrome

Morsicatio buccarum (Chronic cheek biting, Chronic cheek chewing)

Mucosal lichen planus

Mucosal squamous cell carcinoma

Mucous cyst of the oral mucosa (Mucocele)

Nagayama’s spots

Oral Crohn’s disease

Oral florid papillomatosis

Oral melanosis

Osseous choristoma of the tongue

Peripheral ameloblastoma

Plasma cell cheilitis (Plasma cell gingivitis, Plasma cell orificial mucositi)

Plasmoacanthoma

Proliferative verrucous leukoplakia

Pyogenic granuloma (Eruptive hemangioma, Granulation tissue-type hemangioma, Granuloma gravidarum, Lobular capillary hemangioma, Pregnancy tumor, Tumor of pregnancy)

 

 

Pyogenic granuloma

Pyostomatitis vegetans

Recurrent aphthous stomatitis (Aphthosis, Canker sores, Recurrent oral aphthae)

Recurrent intraoral herpes simplex infection

Smooth tongue (Atrophic glossitis, Bald tongue, Hunter glossitis, Moeller)

Stomatitis nicotina (Nicotine stomatitis, Smoker’s keratosis, Smoker’s patches)

Torus palatinus

Trumpeter’s wart

Vestibular papillomatosis

White sponge nevus (White sponge nevus of Cannon)

Conditions of the skin appendages

Conditions of the skin appendages are those affecting the glands of the skin, hair, nails, and arrector pili muscles

Acne necrotica

Acquired generalized hypertrichosis (Acquired hypertrichosis lanuginosa)

Acquired perforating dermatosis (Acquired perforating collagenosis)

Acrokeratosis paraneoplastica of Bazex (Acrokeratosis neoplastica, Bazex syndrome)

Acroosteolysis

Acute paronychia

 

 

Alopecia areata

Alopecia areata

Alopecia neoplastica

Anagen effluvium

Androgenic alopecia (Androgenetic alopecia)

Anhidrosis (Hypohidrosis)

Anonychia

Apparent leukonychia

Beau’s lines

Blue nails

Bromidrosis (Apocrine bromhidrosis, Fetid sweat, Malodorous sweating, Osmidrosis)

Bubble hair deformity

Central centrifugal cicatricial alopecia (Follicular degeneration syndrome, Pseudopelade of the central scalp)

Chevron nail (Herringbone nail)

Chromhidrosis (Colored sweat)

Chronic paronychia

Cicatricial alopecia

Clubbing (Drumstick fingers, Hippocratic fingers, Watch-glass nails)

Congenital onychodysplasia of the index fingers

Disseminate and recurrent infundibulofolliculitis

Erosive pustular dermatitis of the scalp (Erosive pustular dermatosis of the scalp)

Erythromelanosis follicularis faciei et colli

Folliculitis decalvans

Folliculitis nares perforans

Fox–Fordyce disease

Frontal fibrosing alopecia

Generalized congenital hypertrichosis (Congenital hypertrichosis lanuginosa)

Generalized hyperhidrosis

Graham-Little syndrome

Granulosis rubra nasi

 

 

Nail–patella syndrome

Green nails

Gustatory hyperhidrosis

Hair casts (Pseudonits)

Hair follicle nevus (Vellus hamartoma)

Hairy palms and soles

Half and half nails (Lindsay’s nails)

Hangnail

Hapalonychia

Hematidrosis

Hirsutism

Hook nail

Hot comb alopecia

Hypertrichosis cubiti (Hairy elbow syndrome)

Hypertrichosis simplex of the scalp

Intermittent hair–follicle dystrophy

Keratosis pilaris atropicans

Kinking hair (Acquired progressive kinking)

Koenen’s tumor (Koenen’s periungual fibroma, Periungual fibroma)

Koilonychia (Spoon nails)

Kyrle disease

Leukonychia (White nails)

Lichen planopilaris (Acuminatus, Follicular lichen planus, Lichen planus follicularis, Peripilaris)

Lichen planus of the nails

Lichen spinulosus (Keratosis spinulosa)

Lipedematous alopecia (Lipedematous scalp)

Localized acquired hypertrichosis

Localized congenital hypertrichosis

Longitudinal erythronychia

Longitudinal melanonychia

Loose anagen syndrome (Loose anagen hair syndrome)

Lupus erythematosus

Madarosis

Malalignment of the nail plate

Male-pattern baldness

Marie–Unna hereditary hypotrichosis (Marie–Unna hypotrichosis)

Median nail dystrophy (Dystrophia unguis mediana canaliformis, Median canaliform dystrophy of Heller, Solenonychia)

Mees’ lines

Melanonychia

Menkes kinky hair syndrome (Kinky hair disease, Menkes disease)

Monilethrix (Beaded hair)

Muehrcke’s nails (Muehrcke’s lines)

 

 

Onychotillomania

Nail–patella syndrome (Fong syndrome, Hereditary osteoonychodysplasia)

Neoplasms of the nailbed

Nevoid hypertrichosis

Noncicatricial alopecia

Onychauxis

Onychoatrophy

Onychocryptosis (Ingrown nail, Unguis incarnatus)

Onychogryphosis (Ram’s horn nails)

Onycholysis

Onychomadesis

Onychomatricoma

Onychophagia (Nail biting)

Onychophosis

Onychoptosis defluvium (Alopecia unguium)

Onychorrhexis (Brittle nails)

Onychoschizia

Onychotillomania

Ophiasis

Palmoplantar hyperhidrosis (Emotional hyperhidrosis)

Parakeratosis pustulosa

Patterned acquired hypertrichosis

Perforating folliculitis

Pili annulati (Ringed hair)

Pili bifurcati

Pili multigemini

Pili pseudoannulati (Pseudo pili annulati)

Pili torti (Twisted hairs)

Pincer nails (Omega nails, Trumpet nails)

Pityriasis amiantacea (Tinea amiantacea)

Platonychia

Plica neuropathica (Felted hair)

Plummer’s nail

Prepubertal hypertrichosis

Pressure alopecia (Postoperative alopecia, Pressure-induced alopecia)

Pseudofolliculitis barbae (Barber’s itch, Folliculitis barbae traumatica, Razor bumps, Scarring pseudofolliculitis of the beard, Shave bumps)

Pseudopelade of Brocq (Alopecia cicatrisata)

Psoriatic nails

Pterygium inversum unguis (Pterygium inversus unguis, Ventral pterygium)

Pterygium unguis (Dorsal pterygium)

Purpura of the nail bed

Racquet nail (Brachyonychia, Nail en raquette, Racquet thumb)

Recurrent palmoplantar hidradenitis (Idiopathic palmoplantar hidradenitis, Idiopathic plantar hidradenitis, Painful plantar erythema, Palmoplantar eccrine hidradenitis, Plantar panniculitis)

Red lunulae

Ross’ syndrome

Rubinstein–Taybi syndrome

Setleis syndrome

Shell nail syndrome

Short anagen syndrome

Splinter hemorrhage

Spotted lunulae

Staining of the nail plate

Stippled nails

Subungual hematoma

Telogen effluvium

Terry’s nails

Traction alopecia

Traumatic alopecia

Traumatic anserine folliculosis

Triangular alopecia (Temporal alopecia, Temporal triangular alopecia)

Trichomegaly

Trichomycosis axillaris

Trichorrhexis invaginata (Bamboo hair)

Trichorrhexis nodosa

Trichostasis spinulosa

Tufted folliculitis

Tumor alopecia

Twenty-nail dystrophy (Sandpapered nails, Trachyonychia)

Uncombable hair syndrome (Cheveux incoiffable, Pili trianguli et canaliculi, Spun-glass hair)

Wooly hair (Woolly hair)

Wooly hair nevus (Woolly hair nevus)

X-linked hypertrichosis

Conditions of the subcutaneous fat

Conditions of the subcutaneous fat are those affecting the layer of adipose tissue that lies between the dermis and underlying fascia.^{[35][36][37][38]}

Acquired generalized lipodystrophy (Lawrence syndrome, Lawrence–Seip syndrome)

Adiposis dolorosa (Dercum’s disease)

Alpha-1 antitrypsin deficiency panniculitis (Alpha1-protease deficiency panniculitis, Alpha1-proteinase deficiency panniculitis)

Atrophic connective tissue panniculitis

Barraquer–Simons syndrome (Acquired partial lipodystrophy, Cephalothoracic lipodystrophy, Progressive lipodystrophy)

Benign symmetric lipomatosis (Benign symmetric lipomatosis of Launois–Bensaude, Madelung’s disease)

Centrifugal abdominal lipodystrophy (Centrifugal lipodystrophy, Lipodystrophia centrifugalis abdominalis infantalis)

Chronic erythema nodosum (Erythema nodosum migrans, Subacute migratory panniculitis of Vilanova and Piñol, Subacute nodular migratory panniculitis)

 

 

Chronic erythema nodosum

Cold panniculitis (Popsicle panniculitis)

Congenital generalized lipodystrophy (Berardinelli–Seip syndrome)

Cytophagic histiocytic panniculitis

Drug-induced lipodystrophy

Factitial panniculitis

Familial partial lipodystrophy (Köbberling–Dunnigan syndrome)

Gouty panniculitis

Hemihyperplasia–multiple lipomatosis syndrome

HIV-associated lipodystrophy^{[nb 8]}

Involutional lipoatrophy

Lipoatrophia annularis (Ferreira–Marques lipoatrophia)

Lipoatrophia semicircularis (Semicircular lipoatrophy)

Lipodermatosclerosis (Chronic panniculitis with lipomembranous changes, Hypodermitis sclerodermiformis, Sclerosing panniculitis, Stasis panniculitis)

Lipohypertrophy

Localized lipodystrophy

Neutrophilic lobular panniculitis

Nodular vasculitis

Non-progressive late-onset linear hemifacial lipoatrophy

Pancreatic panniculitis (Enzymatic panniculitis, Pancreatic fat necrosis, Subcutaneous fat necrosis)

Poland’s syndrome

Post-steroid panniculitis

Sclerema neonatorum

Sclerosing lipogranuloma (Paraffinoma)

Septal panniculitis

Subcutaneous fat necrosis of the newborn

Traumatic panniculitis

Tumor lysis syndrome

Weber–Christian disease (Relapsing febrile non-suppurative panniculitis)

Congenital anomalies

Cutaneous congenital anomalies are a diverse group of disorders that result from faulty morphogenesis, the biological process that forms the shape of a human body.^[39][40][34]

Accessory nail of the fifth toe

Accessory tragus (Ear tag, Preauricular appendage, Preauricular tag)

Amniotic band syndrome (ADAM complex, Amniotic band sequence, Congenital constriction bands, Pseudoainhum)

Aplasia cutis congenita (Cutis aplasia, Congenital absence of skin, Congenital scars)

Arteriovenous fistula

Benign neonatal hemangiomatosis

Branchial cyst (Branchial cleft cyst)

Bronchogenic cyst

Capillary hemangioma (Infantile hemangioma, Nevus maternus, Strawberry hemangioma Strawberry nevus)

Cavernous venous malformation

Congenital cartilaginous rest of the neck (Cervical accessory tragus, Wattle)

Congenital erosive and vesicular dermatosis

Congenital hypertrophy of the lateral fold of the hallux

Congenital lip pit (Congenital sinus of the lower lip, Lip sinus, Midline sinus of the upper lip)

Congenital malformations of the dermatoglyphs

Congenital smooth muscle hamartoma

Cystic lymphatic malformation

Dermoid cyst

Diffuse neonatal hemangiomatosis

Encephalocele

Hutchinson’s teeth

Hyperkeratotic cutaneous capillary-venous malformation

Intrauterine epidermal necrosis

Limb–mammary syndrome

Lowry–MacLean syndrome

Macrocheilia

Macrocystic lymphatic malformation

Malignant pilomatricoma (Pilomatrical carcinoma, Pilomatrix carcinoma)

Maternal autoimmune bullous disease

Median raphe cyst

Melanotic neuroectodermal tumor of infancy

Membranous aplasia cutis

Microcystic lymphatic malformation

Midline cervical cleft

Mongolian spot (Congenital dermal melanocytosis, Dermal melanocytosis)

 

 

Mongolian spot

Mulberry molar

Nager acrofacial dysostosis

Nasal glioma (Brain-like heterotopia, Cephalic brain-like heterotopia, Glial hamartoma, Heterotopic neuroglial tissue, Nasal cerebral heterotopia, Nasal heterotopic brain tissue)

Nasolacrimal duct cyst

Nevus psiloliparus

Non-involuting congenital hemangioma

Omphalomesenteric duct cyst (Omphalomesenteric duct remnant, Vitelline cyst)

Pilomatricoma (Calcifying epithelioma of Malherbe, Malherbe calcifying epithelioma, Pilomatrixoma)

Poland anomaly

Posterior fossa malformations–hemangiomas–arterial anomalies–cardiac defects–eye abnormalities–sternal cleft and supraumbilical raphe syndrome (PHACE association, PHACES syndrome)

Preauricular sinus and cyst (Ear pit, Congenital auricular fistula, Congenital preauricular fistula, Ear pit, Preauricular cyst)

Rapidly involuting congenital hemangioma (Congenital non-progressive hemangioma)

Rosenthal–Kloepfer syndrome

Rudimentary supernumerary digit (Rudimentary polydactyly)

Sinus pericranii

Skin dimple (Skin fossa)

Superficial lymphatic malformation (Lymphangioma circumscriptum)

Supernumerary nipple (Accessory nipple, Pseudomamma)

Thyroglossal duct cyst

Verrucous vascular malformation (Angiokeratoma circumscriptum naeviforme)

Connective tissue diseases

Connective tissue diseases are caused by a complex array of autoimmune responses that target or affect collagen or ground substance.^[41][34]

Acute cutaneous lupus erythematosus

Atrophoderma of Pasini and Pierini (Dyschromic and atrophic variation of scleroderma, Morphea plana atrophica, Sclérodermie atrophique d’emblée)

Calcinosis–Raynaud phenomenon–esophageal dysmotility–sclerodactyly–telangiectasia syndrome (CREST syndrome)

Chilblain lupus erythematosus (Chilblain lupus erythematosus of Hutchinson)

Childhood dermatomyositis

Childhood discoid lupus erythematosus

Childhood systemic lupus erythematosus

 

Frontal linear scleroderma

Complement deficiency syndromes

Dermatomyositis

Eosinophilia–myalgia syndrome

Frontal linear scleroderma (En coup de sabre, Morphea en coup de sabre)

Generalized discoid lupus erythematosus

Generalized morphea

Interstitial granulomatous dermatitis

Juvenile rheumatoid arthritis (Juvenile idiopathic arthritis, Still’s disease)

Keloid morphea

Linear atrophoderma of Moulin (Moulin atrophoderma linearis)

Linear scleroderma

Localized discoid lupus erythematosus

Localized morphea

Lupus erythematosus panniculitis (Lupus erythematosus profundus, Lupus panniculitis, Lupus profundus, Subcutaneous lupus erythematosus)

Lupus erythematosus–lichen planus overlap syndrome (Lichen planus–lupus erythematosus overlap syndrome)

Methotrexate-induced papular eruption

Mixed connective tissue disease (Sharp’s syndrome, Undifferentiated connective tissue disease)

Morphea profunda

Morphea–lichen sclerosus et atrophicus overlap

Mouth and genital ulcers with inflamed cartilage syndrome (MAGIC syndrome)

Neonatal lupus erythematosus

Nephrogenic systemic fibrosis (Nephrogenic fibrosing dermopathy)

Nicolau–Balus syndrome

 

Localized morphea

Nodulosis–arthropathy–osteolysis syndrome

Normophosphatemic familial tumoral calcinosis

Palisaded neutrophilic and granulomatous dermatitis

Pansclerotic morphea

Parry–Romberg syndrome (Progressive hemifacial atrophy)

Progressive systemic sclerosis

Relapsing polychondritis (Atrophic polychondritis, Systemic chondromalacia)

Rheumatoid arthritis

Rheumatoid nodulosis (Accelerated rheumatoid nodulosis)

Rheumatoid vasculitis

Rowell’s syndrome

Scleredema adultorum (Bushke disease, Scleredema diabeticorum, Scleredema adultorum of Buschke, Scleredema of Buschke)

Silicosis

Sjögren’s syndrome (Mikulicz disease, Sicca syndrome)

Subacute cutaneous lupus erythematosus

Systemic lupus erythematosus

Toxic oil syndrome

Tumid lupus erythematosus (Lupus erythematosus tumidus)

Tuzun syndrome

Verrucous lupus erythematosus (Hypertrophic lupus erythematosus)

Winchester syndrome

Abnormalities of dermal fibrous and elastic tissue

Abnormalities of dermal fibrous and elastic tissue are caused by problems in the regulation of collagen synthesis and/or degradation.^[42][34]

 

Striae distensae

Acrodermatitis chronica atrophicans (Herxheimer disease, Primary diffuse atrophy)

Actinic elastosis (Solar elastosis)

Anetoderma (Anetoderma maculosa, Anetoderma maculosa cutis, Atrophia maculosa cutis, Macular atrophy)

Blepharochalasis

Cutis laxa (Chalazoderma, Dermatochalasia, Dermatolysis, Dermatomegaly, Generalized elastolysis, Generalized elastorrhexis, Pachydermatocele)

Cutis rhomboidalis nuchae

Ehlers–Danlos syndrome (Cutis hyperelastica, Elastic skin, India rubber skin)

Elastosis perforans serpiginosa

Homocystinuria

Jadassohn–Pellizzari anetoderma

Linear focal elastosis (Elastotic striae)

Loeys–Dietz syndrome

Marfan syndrome

Occipital horn syndrome

Osteogenesis imperfecta (Lobstein syndrome)

Perforating calcific elastosis (Localized acquired cutaneous pseudoxanthoma elasticum, Perforating periumbilical calcific elastosis, Periumbilical perforating pseudoxanthoma elasticum)

Pseudoxanthoma elasticum (Grönblad–Strandberg syndrome)

Reactive perforating collagenosis

Schweninger–Buzzi anetoderma

Sclerotic fibroma

Striae atrophicans

Striae distensae

Ullrich disease

Verrucous perforating collagenoma

Wrinkly skin syndrome

Dermal and subcutaneous growths

Dermal and subcutaneous growths result from (1) reactive or neoplastic proliferation of cellular components of the dermis or subcutaneous tissue, or (2) neoplasms invading or aberrantly present in the dermis.^[1][34]

Acquired progressive lymphangioma (Benign lymphangioendothelioma)

Acral arteriolar ectasia

Acral fibrokeratoma (Acquired digital fibrokeratoma, Acquired periungual fibrokeratoma)

Acrochordon (Cutaneous papilloma, Cutaneous tag, Fibroepithelial polyp, Fibroma molluscum, Fibroma pendulum, Papilloma colli, Skin tag, Soft fibroma, Templeton skin tag)

Adenoma sebaceum

Adult type of generalized eruption of cutaneous mastocytosis

African cutaneous Kaposi sarcoma

 

 

Angiokeratoma

African lymphadenopathic Kaposi sarcoma

Aggressive infantile fibromatosis

AIDS-associated Kaposi sarcoma

Ainhum (Bankokerend, Dactylolysis spontanea, Sukhapakla)

Angiofibroma

Angiokeratoma

Angiokeratoma of Mibelli (Mibelli’s angiokeratoma, Telangiectatic warts)

Angioleiomyoma (Vascular leiomyoma)

Angiolipoleiomyoma

Angiolipoma

Angioma serpiginosum

Angiosarcoma

Aponeurotic fibroma (Calcifying aponeurotic fibroma, Juvenile aponeurotic fibroma)

Atypical fibroxanthoma

Benign lipoblastomatosis (Embryonic lipoma)

Buschke–Ollendorff syndrome (Dermatofibrosis lenticularis disseminata)

Capillary aneurysms

Carcinoid

Cherry angioma (De Morgan spot, Senile angioma)

Chondrodermatitis nodularis chronica helicis (Chondrodermatitis nodularis helicis)

 

 

Chondrodermatitis nodularis chronica helicis

Chondroid lipoma

Chordoma

Classic Kaposi sarcoma

Collagenous fibroma (Desmoplastic fibroblastoma)

Composite hemangioendothelioma

Connective tissue nevus (Collagenoma, Elastoma, Shagreen patch)

Cutaneous endometriosis

Cutaneous meningioma (Heterotopic meningeal tissue, Rudimentary meningocele)

Cutaneous myelofibrosis

Cutaneous myxoma

Cutis marmorata telangiectatica congenita (Congenital generalized phlebectasia, Van Lohuizen syndrome)

Dermal dendrocyte hamartoma

Dermatofibroma (Benign fibrous histiocytoma, Dermal dendrocytoma, Fibrous dermatofibroma, Fibrous histiocytoma, Fibroma simplex, Histiocytoma, Nodular subepidermal fibrosis, Sclerosing hemangioma)

Dermatofibrosarcoma protuberans

Desmoid tumor

Diffuse cutaneous mastocytosis

Diffuse infantile fibromatosis

Dupuytren’s contracture (Dupuytren’s diathesis, Dupuytren’s disease, Palmar fibromatosis)

Eccrine angiomatous hamartoma

Elastofibroma dorsi

Endovascular papillary angioendothelioma (Dabska tumor, Dabska-type hemangioendothelioma, Hobnail hemangioendothelioma, Malignant endovascular papillary angioendothelioma, Papillary intralymphatic angioendothelioma)

Epithelioid hemangioendothelioma

Epithelioid sarcoma

Erythrodermic mastocytosis

Extraskeletal chondroma (Chondroma of soft parts)

Familial myxovascular fibromas

Fascial hernia

Fibroma of tendon sheath

Fibromatosis colli (Sternomastoid tumor of infancy)

Fibrous hamartoma of infancy

Fibrous papule of the nose (Benign solitary fibrous papule, Fibrous papule of the face)

Folded skin with scarring (Michelin tire baby syndrome)

Fordyce’s spot (Angiokeratoma of Fordyce, Angiokeratoma of the scrotum and vulva, Fordyce’s disease)

Ganglion cyst

Ganglioneuroma

Genital leiomyoma (Dartoic leiomyoma)

Giant cell fibroblastoma

Giant cell tumor of the tendon sheath (Giant cell synovioma, Localized nodular tenosynovitis, Pigmented villonodular synovitis)

Glomeruloid hemangioma

 

Fordyce’s spot

Glomus tumor (Glomangioma, Solid glomus tumor, Solitary glomus tumor)

Granular cell tumor (Abrikossoff’s tumor, Abrikossov’s tumor, Granular cell myoblastoma, Granular cell nerve sheath tumor, Granular cell schwannoma)

Hamartoma

Hemangiopericytoma

Hemangiosarcoma

Hibernoma (Fetal lipoma, Lipoma of embryonic fat, Lipoma of immature adipose tissue)

Hypertrophic scar

Immunosuppression-associated Kaposi sarcoma

Infantile digital fibromatosis (Inclusion body fibromatosis, Infantile digital myofibroblastoma, Reye tumor)

Infantile hemangiopericytoma (Congenital hemangiopericytoma)

Infantile myofibromatosis (Congenital generalized fibromatosis, Congenital multicentric fibromatosis)

Infantile systemic hyalinosis (Juvenile systemic hyalinosis)

Intradermal spindle cell lipoma

Intravascular papillary endothelial hyperplasia (Masson’s hemangio-endotheliome vegetant intravasculaire, Masson’s lesion, Masson’s pseudoangiosarcoma, Masson’s tumor, Papillary endothelial hyperplasia)

Juvenile hyaline fibromatosis (Fibromatosis hyalinica multiplex juvenilis, Murray–Puretic–Drescher syndrome)

Kaposiform hemangioendothelioma (Infantile kaposiform hemangioendothelioma)

Kasabach–Merritt syndrome (Hemangioma with thrombocytopenia)

Keloid (Keloidal scar)

 

Keloid

Keratinizing metaplasia

Keratocyst

Klippel–Trenaunay syndrome (Angioosteohypertrophy syndrome, Hemangiectatic hypertrophy)

Knuckle pads (Heloderma)

Leiomyosarcoma

Lipoma

Liposarcoma (Atypical lipoma, Atypical lipomatous tumor)

Lymphangiectasis (Lymphangioma)

Lymphangiomatosis

Malignant fibrous histiocytoma

Malignant peripheral nerve sheath tumor (Malignant schwannoma, Neurofibrosarcoma, Neurosarcoma)

Mast cell sarcoma

Meningocele

Metastatic carcinoma

Microvenular hemangioma (Microcapillary hemangioma)

Midline nevus flammeus (Angel’s kiss, Salmon patch)

Multifocal lymphangioendotheliomatosis (Congenital cutaneovisceral angiomatosis with thrombocytopenia, Multifocal Lymphangioendotheliomatosis with thrombocytopenia)

Multinucleate cell angiohistocytoma

Multiple cutaneous and uterine leiomyomatosis syndrome (Leiomyomatosis cutis et uteri, Multiple leiomyomatosis, Reed’s syndrome)

Multiple cutaneous leiomyoma (Pilar leiomyoma)

Neural fibrolipoma

Neuroblastoma (Infantile neuroblastoma, Neuroepithelioma)

Neuroma cutis

Neurothekeoma (Bizarre cutaneous neurofibroma, Cutaneous lobular neuromyxoma, Myxoma of the nerve sheath, Myxomatous perineurioma, Nerve sheath myxoma)

Nevus anemicus

Nevus flammeus (Capillary malformation, Port-wine stain)

Nevus flammeus nuchae (Stork bite)

Nevus lipomatosus superficialis (Nevus lipomatosis of Hoffman and Zurhelle)

Nevus oligemicus

Nodular fasciitis (Nodular pseudosarcomatous fasciits, Pseudosarcomatous fasciitis, Subcutaneous pseudosarcomatous fibromatosis)

Oral submucous fibrosis

Pachydermodactyly

Palisaded encapsulated neuroma

Paraneoplastic syndrome

Pearly penile papules (Hirsuties coronae glandis, Hirsutoid papillomas)

Peyronie’s disease (Induratio penis plastica)

Phakomatosis pigmentovascularis

Piloleiomyoma

Plantar fibromatosis (Ledderhose’s disease)

Pleomorphic fibroma

Pleomorphic lipoma

Plexiform fibrohistiocytic tumor

Porokeratotic eccrine ostial and dermal duct nevus

Progressive nodular histiocytoma

Proliferating angioendotheliomatosis

Prominent inferior labial artery

Pseudo-ainhum

Retiform hemangioendothelioma (Hobnail hemangioendothelioma)

Schwannoma (Acoustic neuroma, Neurilemmoma, Neurinoma, Neurolemmoma, Schwann cell tumor)

Solitary angiokeratoma

Solitary cutaneous leiomyoma

Solitary mastocytoma

 

Venous lake

Solitary neurofibroma (Plexiform neurofibroma, Solitary nerve sheath tumor, Sporadic neurofibroma)

Spider angioma (Nevus araneus, Spider telangiectasia, Spider nevus, Vascular spider)

Spindle cell hemangioendothelioma (Spindle cell hemangioma)

Spindle cell lipoma

Sternal cleft

Subungual exostosis

Superficial acral fibromyxoma

Systemic mastocytosis

Targetoid hemosiderotic hemangioma (Hobnail hemangioma)

Telangiectasia

Telangiectasia macularis eruptiva perstans

Teratoma

Tufted angioma (Acquired tufted angioma, Angioblastoma, Angioblastoma of Nakagawa, Hypertrophic hemangioma, Progressive capillary hemangioma, Tufted hemangioma)

Umbilical granuloma

Universal angiomatosis (Generalized telangiectasia)

Urticaria pigmentosa (Childhood type of generalized eruption of cutaneous mastocytosis)

Venous lake (Phlebectases)

Wildervanck syndrome

Xanthelasmoidal mastocytosis

Zosteriform metastasis

Dermatitis

Dermatitis is a general term for “inflammation of the skin.”^[43]

Essential dermatitis

Atopic

Atopic dermatitis is a chronic dermatitis associated with a hereditary tendency to develop allergies to food and inhalant substances.

Atopic dermatitis (Atopic eczema, Disseminated neurodermatitis, Flexural eczema, Infantile eczema, Prurigo diathsique)

Contact

Contact dermatitis is caused by certain substances coming in contact with the skin.^[47][48][49]

Abietic acid dermatitis

Acid-induced

Acrylic monomer dermatitis

Adhesive dermatitis

African blackwood dermatitis

Airbag dermatitis (Airbag burn)

Alkali-induced

Allergic

Antifungal agent-induced

Antimicrobial agent-induced

Arsenic dermatitis

Artificial nail-induced

Axillary antiperspirant-induced

Axillary deodorant-induced

Baboon syndrome

Black dermatographism

Bleaching cream-induced

Capsaisin-induced

Chemical burn

 

Chemical burn

Chloracne

Chrome dermatitis

Clothing-induced

Cobalt dermatitis

Contact stomatitis (Contact lichenoid reaction, Lichenoid amalgam reaction, Oral mucosal cinnamon reaction)

Contact urticaria

Corticosteroid-induced

Cosmetic dermatitis

Cosmetic intolerance syndrome

Dentifrice-induced

Dermatitis from metals and metal salts

Dust-induced

Epoxy resin dermatitis

Ethylenediamine-induced

Eye makeup-induced

Fiberglass dermatitis

Flower-induced

Formaldehyde-induced

Formaldehyde-releasing agent-induced

Fragrance-induced

Gold dermatitis

Hair bleach-induced

Hair dye-induced

Hair lotion-induced

Hair spray-induced

Hair straightener-induced

Hair tonic-induced

Houseplant-induced

Hydrocarbon-induced

Irritant folliculitis

Lacquer dermatitis (Lacquer sensitivity)

Lanolin-induced

Lipstick-induced

Local anesthetic-induced

Makassar ebony dermatitis

Marine plant-induced

Mechanical irritant dermatitis

Mercury dermatitis

Mouthwash-induced

Nail lacquer-induced

Nail polish remover-induced

Nickel dermatitis

Occupation-induced

p-Chloro-Meta-Xylenol-induced

Paraben-induced

Paraphenylenediamine dermatitis

Permanent wave preparation-induced

Phenothiazine drug-induced

Photoallergic

Photoirritant

Plant derivative-induced

Pollen-induced

Polyester resin dermatitis

Propylene glycol-induced

 

 

Toxicodendron dermatitis

Protein contact dermatitis

Quaternium-15 hypersensitivity

Reed dermatitis

Rosewood dermatitis

Rosin dermatitis

Rubber dermatitis

Seed-induced

Shoe dermatitis

Solvent-induced

Sorbic acid-induced

Subjective irritant contact dermatitis (Sensory irritant contact dermatitis)

Sunscreen-induced

Systemic contact dermatitis

Tear gas dermatitis

Textile dermatitis

Toxicodendron dermatitis (Poison ivy)

Traumatic irritant contact dermatitis

Tree-associated plant-induced

Tree-induced

Tulip fingers

Vegetable-induced

Eczema

Eczema refers to a broad range of conditions that begin as spongiotic dermatitis and may progress to a lichenified stage.^[50][51]

 

Dyshidrosis

Autoimmune estrogen dermatitis

Autoimmune progesterone dermatitis

Autosensitization dermatitis

Breast eczema (Nipple eczema)

Chronic vesiculobullous hand eczema

Circumostomy eczema

Dyshidrosis (Acute vesiculobullous hand eczema, Cheiropompholyx, Dyshidrotic eczema, Pompholyx, Podopompholyx)

Ear eczema

Eyelid dermatitis

Hand eczema

Hyperkeratotic hand dermatitis

Id reaction (Disseminated eczema, Generalized eczema)

Irritant diaper dermatitis (Diaper dermatitis, Napkin dermatitis)

Juvenile plantar dermatosis (Atopic winter feet, Dermatitis plantaris sicca, Forefoot dermatitis, Moon-boot foot syndrome, Sweaty sock dermatitis)

Molluscum dermatitis

Nummular dermatitis (Discoid eczema, Microbial eczema, Nummular eczema, Nummular neurodermatitis)

Nutritional deficiency eczema

Sulzberger–Garbe syndrome (Oid-oid disease)

Xerotic eczema (Asteatotic eczema, Desiccation dermatitis, Eczema craquelé, Pruritus hiemalis, Winter eczema, Winter itch)

Pustular

Pustular dermatitis is an inflammation of the skin that presents with pustular lesions.^[52][51]

Eosinophilic pustular folliculitis (Ofuji’s disease, Sterile eosinophilic pustulosis)

Reactive arthritis (Reiter’s disease, Reiter’s syndrome)

Subcorneal pustular dermatosis (Sneddon–Wilkinson disease)

Seborrheic

Seborrheic dermatitis is a chronic, superficial, inflammatory disease characterized by scaling on an erythematous base.^[53]

Infantile seborrheic dermatitis

Leiner’s disease

Pityriasis simplex capillitii (Dandruff)

Seborrheic dermatitis (Seborrheic eczema)

Disturbances of pigmentation

Disturbances of human pigmentation, either loss or reduction, may be related to loss of melanocytes or the inability of melanocytes to produce melanin or transport melanosomes correctly.^[54][55][56]

Albinism–black lock–cell migration disorder of the neurocytes of the gut–deafness syndrome (ABCD syndrome)

Albinism–deafness syndrome (Woolf syndrome, Ziprkowski–Margolis syndrome)

Alezzandrini syndrome

Argyria

Arsenic poisoning

 

 

Vitiligo

Berlin syndrome

Canthaxanthin

Chédiak–Higashi syndrome

Chrysiasis

Cross–McKusick–Breen syndrome (Cross syndrome, Oculocerebral-hypopigmentation syndrome)

Dermatopathia pigmentosa reticularis (Dermatopathia pigmentosa reticularis hyperkeratotica et mutilans, Dermatopathia pigmentosa reticularis hypohidotica et atrophica, Dermatopathic pigmentosa reticularis)

Dyschromatosis symmetrica hereditaria (Reticulate acropigmentation of Dohi, Symmetrical dyschromatosis of the extremities)

Dyschromatosis universalis hereditaria

Elejalde syndrome (Griscelli syndrome type 1)

Familial progressive hyperpigmentation

Galli–Galli disease

Griscelli syndrome type 2 (Partial albinism with immunodeficiency)

Griscelli syndrome type 3

Hemochromatosis (Bronze diabetes)

Hemosiderin hyperpigmentation

Hermansky–Pudlak syndrome

Idiopathic guttate hypomelanosis (Leukopathia symmetrica progressiva)

Iron metallic discoloration

Klein–Waardenburg syndrome

Lead poisoning

Leukoderma

Melanoma-associated leukoderma

Melasma (Chloasma faciei, Mask of pregnancy)

Mukamel syndrome

Necklace of Venus

Nevus depigmentosus (Nevus achromicus)

Ocular albinism

Oculocutaneous albinism

Pallister–Killian syndrome

Periorbital hyperpigmentation

Photoleukomelanodermatitis of Kobori

Phylloid hypomelanosis

Piebaldism

Pigmentatio reticularis faciei et colli

 

Nevus depigmentosus

Pityriasis alba

Poikiloderma of Civatte

Poikiloderma vasculare atrophicans

Postinflammatory hyperpigmentation (Postinflammatory hypermelanosis)

Postinflammatory hypopigmentation

Progressive macular hypomelanosis

Quadrichrome vitiligo

Reticular pigmented anomaly of the flexures (Dark dot disease, Dowling–Degos’ disease)

Reticulate acropigmentation of Kitamura

Revesz syndrome

Riehl melanosis

Scratch dermatitis (Flagellate pigmentation from bleomycin)

Segmental vitiligo

Shah–Waardenburg syndrome

Shiitake mushroom dermatitis (Flagellate mushroom dermatitis, Mushroom worker’s disease, Shiitake-induced toxicoderma)

Tar melanosis (Melanodermatitis toxica lichenoides)

Tietz syndrome

Titanium metallic discoloration

Transient neonatal pustular melanosis (Transient neonatal pustulosis, Lentigines neonatorum)

Trichrome vitiligo

Vagabond’s leukomelanoderma

Vasospastic macule

Vitiligo

Vitiligo ponctué

Vogt–Koyanagi–Harada syndrome

Waardenburg syndrome

Wende–Bauckus syndrome (Pegum syndrome)

Woronoff’s ring

X-linked reticulate pigmentary disorder (Familial cutaneous amyloidosis, Partington amyloidosis, Partington cutaneous amyloidosis, Partington syndrome type II, Reticulate pigmentary disorder, X-linked reticulate pigmentary disorder with systemic manifestations)

Yemenite deaf-blind hypopigmentation syndrome

Drug eruptions

Drug eruptions are adverse drug reactions that present with cutaneous manifestations.

Acrodynia (Calomel disease, Erythredemic polyneuropathy, Pink disease)

Acute generalized exanthematous pustulosis (Pustular drug eruption, Toxic pustuloderma)

Adverse reaction to biologic agents

Adverse reaction to cytokines

Allopurinol hypersensitivity syndrome

Anticoagulant-induced skin necrosis

Anticonvulsant hypersensitivity syndrome

Bromoderma

Bullous drug reaction (Bullous drug eruption, Generalized bullous fixed drug eruption, Multilocular bullous fixed drug eruption)

Chemotherapy-induced acral erythema (Palmoplantar erythrodysesthesia syndrome)

Chemotherapy-induced hyperpigmentation

Drug-induced acne

Drug-induced angioedema

Drug-related gingival hyperplasia

Drug-induced lichenoid reaction (Drug-induced lichen planus, Lichenoid drug eruption)

Drug-induced lupus erythematosus

Drug-induced nail changes

Drug-induced pigmentation

Drug-induced pseudolymphoma

Drug-induced urticaria

Erythema multiforme major (Erythema multiforme minor–erythema multiforme von Hebra)

Exudative hyponychial dermatitis

Fixed drug reaction

Halogenoderma

Heparin necrosis

HIV disease-related drug reaction

Hydroxyurea dermopathy

Injection site reaction

Iododerma

Leukotriene receptor antagonist-associated Churg–Strauss syndrome

Linear IgA bullous dermatosis (Linear IgA dermatosis)

Photosensitive drug reaction

Red man syndrome

Scleroderma-like reaction to taxanes

Serum sickness-like reaction

Steroid acne

Steroid folliculitis

Stevens–Johnson syndrome

Sulfonamide hypersensitivity syndrome

Texier’s disease

Toxic epidermal necrolysis (Lyell’s syndrome)

Urticarial erythema multiforme

Vitamin K reaction

Warfarin necrosis

Endocrine-related

Endocrine conditions often present with cutaneous findings as the skin interacts with the endocrine system in many ways.^[60][61]

Acanthosis nigricans associated with malignancy (Acanthosis nigricans type I)

Acanthosis nigricans associated with obesity, insulin-resistant states, and endocrinopathy (Acanthosis nigricans type III)

Acral acanthosis nigricans (Acral acanthotic anomaly)

Acral dry gangrene

Acromegaly

Addison’s disease

Adrenal adenoma

Adrenal carcinoma

Adrenal hyperplasia

Alopecia–nail dystrophy–ophthalmic complications–thyroid dysfunction–hypohidrosis–ephelides and enteropathy–respiratory tract infections syndrome (ANOTHER syndrome)

Arrhenoblastoma

Cretinism

Cushing’s syndrome

Excess ovarian androgen release syndrome (Ovarian SAHA syndrome)

Familial acanthosis nigricans (Acanthosis nigricans type II)

Growth hormone deficiency

Hyperandrogenism–insulin resistance–acanthosis nigricans syndrome (HAIR-AN syndrome)

Hyperparathyroidism

Hyperprolactinemic SAHA syndrome

Hyperthyroidism

Hypoparathyroidism

Hypothyroidism

Leydig cell tumor

Multiple endocrine neoplasia type 1 (Wermer syndrome)

Multiple endocrine neoplasia type 2 (Multiple endocrine neoplasia type 2A, Pheochromocytoma and amyloid producing medullary thyroid carcinoma, PTC syndrome, Sipple syndrome)

Multiple endocrine neoplasia type 3 (Mucosal neuromata with endocrine tumors, Multiple endocrine neoplasia type 2B, Multiple mucosal neuroma syndrome, Wagenmann–Froboese syndrome)

Myxedema

Panhypopituitarism

Persistent adrenarche syndrome (Adrenal SAHA syndrome)

Polycystic ovarian syndrome

Seborrhoea–acne–hirsutism–alopecia (SAHA syndrome)

Thyroid acropachy

Eosinophilic

Eosinophilic cutaneous conditions encompass a wide variety of diseases that are characterized histologically by the presence of eosinophils in the inflammatory infiltrate and/or evidence of eosinophil degranulation.^[62][63]

Angiolymphoid hyperplasia with eosinophilia (Epithelioid hemangioma, Histiocytoid hemangioma, Inflammatory angiomatous nodule, Inflammatory arteriovenous hemangioma, Intravenous atypical vascular proliferation, Papular angioplasia, Pseudopyogenic granuloma)

Annular erythema of infancy

Arthropod assault

Churg–Strauss syndrome (Allergic granulomatosis)

Eosinophilic cellulitis (Wells’ syndrome)

Eosinophilic fasciitis (Shulman’s syndrome)

Eosinophilic granuloma

Eosinophilic pustular folliculitis of infancy (Eosinophilic pustular folliculitis in infancy, Infantile eosinophilic pustular folliculitis, Neonatal eosinophilic pustular folliculitis)

Eosinophilic ulcer of the oral mucosa (Eosinophilic ulcer of the tongue, Riga–Fede disease, Traumatic eosinophilic granuloma)

 

Eosinophilic ulcer of the oral mucosa

Eosinophilic vasculitis

Erythema toxicum neonatorum (Erythema toxicum, Toxic erythema of the newborn)

Granuloma faciale

Hypereosinophilic syndrome

Incontinentia pigmenti (Bloch–Siemens syndrome, Bloch–Sulzberger disease, Bloch–Sulzberger syndrome)

Itchy red bump disease (Papular dermatitis)

Juvenile xanthogranuloma

Kimura’s disease

Nodules–eosinophilia–rheumatism–dermatitis–swelling syndrome (NERDS syndrome)

Pachydermatous eosinophilic dermatitis

Papular eruption of blacks

Papuloerythroderma of Ofuji

Pruritic papular eruption of HIV disease

Epidermal nevi, neoplasms, cysts

Epidermal nevi, neoplasms, cysts are skin lesions that develop from the epidermal layer of the skin.^[8][51]

Aberrant basal cell carcinoma

Acanthoma fissuratum (Granuloma fissuratum, Spectacle frame acanthoma)

Acrospiroma (Clear cell hidradenoma, Dermal duct tumor, Hidroacanthoma simplex, Nodular hidradenoma, Poroma)

Actinic keratosis (Senile keratosis, Solar keratosis)

Adenoid squamous cell carcinoma (Pseudoglandular squamous cell carcinoma)

Aggressive digital papillary adenocarcinoma (Digital papillary adenocarcinoma, Papillary adenoma)

 

 

Basal cell carcinoma

Apocrine gland carcinoma

Apocrine nevus

Arsenical keratosis

Atrophic actinic keratosis

Balanitis plasmacellularis (Balanoposthitis chronica circumscripta plasmacellularis, Balanitis circumscripta plasmacellularis, Plasma cell balanitis, Plasma cell vulvitis, Vulvitis circumscripta plasmacellularis, Zoon’s balanitis, Zoon’s erythroplasia, Zoon’s vulvitis)

Basal cell carcinoma

Basaloid follicular hamartoma

Basaloid squamous cell carcinoma

Birt–Hogg–Dubé syndrome

Bowen’s disease (Squamous cell carcinoma in situ)

Ceruminoma

Cicatricial basal cell carcinoma (Morpheaform basal cell carcinoma, Morphoeic basal cell carcinoma)

Ciliated cyst of the vulva (Cutaneous Müllerian cyst, Paramesonephric mucinous cyst of the vulva)

Clear cell acanthoma (Acanthome cellules claires of Degos and Civatte, Degos acanthoma, Pale cell acanthoma)

Clear cell squamous cell carcinoma (Clear cell carcinoma of the skin)

Chronic scar keratosis (Chronic cicatrix keratosis)

Clonal seborrheic keratosis

Common seborrheic keratosis (Basal cell papilloma, Solid seborrheic keratosis)

Cowden syndrome (Cowden’s disease, Multiple hamartoma syndrome)

Cutaneous ciliated cyst

Cutaneous columnar cyst

Cutaneous horn (Cornu cutaneum)

Cystic basal cell carcinoma

Dermal eccrine cylindroma (Cylindroma)

Dermatosis papulosa nigra

Desmoplastic trichoepithelioma

Dilated pore (Dilated pore of Winer)

 

 

Bowen’s disease

Eccrine carcinoma (Syringoid carcinoma)

Eccrine nevus

Epidermal cyst (Epidermal inclusion cyst, Epidermoid cyst, Infundibular cyst, Keratin cyst)

Epidermal nevus syndrome (Feuerstein and Mims syndrome, Solomon’s syndrome)

Epidermolytic acanthoma

Eruptive vellus hair cyst

Erythroplasia of Queyrat

Extramammary Paget’s disease

Fibroepithelioma

Fibroepithelioma of Pinkus

Fibrofolliculoma

Follicular hybrid cyst (Hybrid cyst)

Folliculosebaceous-apocrine hamartoma (Follicular-apocrine hamartoma)

Folliculosebaceous cystic hamartoma

Generalized eruptive keratoacanthoma (Generalized eruptive keratoacanthoma of Grzybowski)

Giant solitary trichoepithelioma

Hidradenoma

 

 

Hidradenoma

Hidradenocarcinoma

Hidrocystoma (Cystadenoma, Moll’s gland cyst, Sudoriferous cyst)

Hydrocarbon keratosis (Pitch keratosis, Tar keratosis, Tar wart)

Hyperkeratosis lenticularis perstans (Flegel’s disease)

Hyperkeratosis of the nipple and areola

Hyperkeratotic actinic keratosis

Ichthyosis hystrix (Ichthyosis hystrix gravior type Lambert, Porcupine man, Systematized verrucous nevus)

Ichthyosis hystrix of Curth–Macklin

Infiltrative basal cell carcinoma

Inflammatory linear verrucous epidermal nevus

Inverted follicular keratosis

Irritated seborrheic keratosis (Basosquamous cell acanthoma, Inflamed seborrheic keratosis)

Isthmicoma (Infundibuloma, Tumor of the follicular infundibulum)

Juvenile myelomonocytic leukemia

Keratin implantation cyst

Keratoacanthoma

Keratoacanthoma centrifugum marginatum

Large cell acanthoma

Lichenoid actinic keratosis

Lichenoid keratosis (Benign lichenoid keratosis, Lichen planus-like keratosis, Solitary lichen planus, Solitary lichenoid keratosis)

Linear verrucous epidermal nevus (Linear epidermal nevus, Verrucous epidermal nevus)

Malignant acrospiroma (Malignant poroma, Porocarcinoma, Spiradenocarcinoma)

Malignant mixed tumor (Malignant chondroid syringoma)

Malignant trichilemmal cyst

Mantleoma

Marjolin’s ulcer

Melanoacanthoma (Pigmented seborrheic keratosis)

Merkel cell carcinoma (Cutaneous apudoma, Primary neuroendocrine carcinoma of the skin, Primary small cell carcinoma of the skin, Trabecular carcinoma of the skin)

Microcystic adnexal carcinoma (Sclerosing sweat duct carcinoma)

Micronodular basal cell carcinoma

Milia en plaque

Milium

 

Milium

Mixed tumor (Chondroid syringoma)

Mucinous carcinoma

Mucinous nevus (Nevus mucinosus)

Muir–Torre syndrome

Multiple familial trichoepithelioma (Brooke–Spiegler syndrome, Epithelioma adenoides cysticum)

Multiple keratoacanthomas (Ferguson Smith type of multiple self-healing keratoacanthomas, Multiple keratoacanthomas of the Ferguson–Smith type)

Multiple minute digitate hyperkeratosis (Digitate keratoses, Disseminated spiked hyperkeratosis, Familial disseminated piliform hyperkeratosis, Minute aggregate keratosis)

Nevoid basal cell carcinoma syndrome (Basal cell nevus syndrome, Gorlin syndrome, Gorlin–Goltz syndrome)

Nevus comedonicus (Comedo nevus)

Nevus comedonicus syndrome

Nevus sebaceous (Nevus sebaceous of Jadassohn, Organoid nevus)

Nevus unius lateris

Nodular basal cell carcinoma (Classic basal cell carcinoma)

Paget’s disease of the breast

Papillary eccrine adenoma (Tubular apocrine adenoma)

Papillary hidradenoma (Hidradenoma papilliferum)

Papillomatosis cutis carcinoides (Papillomatosis cutis carcinoides of Gottron–Eisenlohr)

Patch blue nevus (Acquired dermal melanocytosis, Dermal melanocyte hamartoma)

Perifollicular fibroma

Phakomatosis pigmentokeratotica

Pigmented actinic keratosis

Pigmented basal cell carcinoma

Pigmented hairy epidermal nevus syndrome

Pilar sheath acanthoma

Pilonidal sinus (Barber’s interdigital pilonidal sinus, Pilonidal cyst, Pilonidal disease)

Polypoid basal cell carcinoma

Pore-like basal cell carcinoma

Primary cutaneous adenoid cystic carcinoma

Proliferating epidermoid cyst (Proliferating epithelial cyst)

Proliferating trichilemmal cyst (Pilar tumor, Proliferating follicular cystic neoplasm, Proliferating pilar tumor, Proliferating trichilemmal tumor)

Pseudocyst of the auricle (Auricular endochondrial pseudocyst, Cystic chondromalacia, Endochondral pseudocyst, Intracartilaginous cyst)

Pseudoepitheliomatous keratotic and micaceous balanitis

PUVA keratosis

Reactional keratosis

Reticulated seborrheic keratosis (Adenoid seborrheic keratosis)

Rodent ulcer (Jacobi ulcer)

Schimmelpenning syndrome (Schimmelpenning–Feuerstein–Mims syndrome)

Sebaceoma (Sebaceous epithelioma)

Sebaceous adenoma

Sebaceous carcinoma

Sebaceous hyperplasia

Sebaceous nevus syndrome

Seboacanthoma

Seborrheic keratosis (Seborrheic verruca, Senile wart)

Seborrheic keratosis with squamous atypia

Signet-ring cell squamous cell carcinoma

Solitary keratoacanthoma (Subungual keratoacanthoma)

Solitary trichoepithelioma

Spindle cell squamous cell carcinoma (Spindle cell carcinoma)

Spiradenoma

Squamous cell carcinoma

 

 

Squamous cell carcinoma

Steatocystoma multiplex (Epidermal polycystic disease, Sebocystomatosis)

Steatocystoma simplex (Simple sebaceous duct cyst, Solitary steatocystoma)

Stucco keratosis (Digitate seborrheic keratosis, Hyperkeratotic seborrheic keratosis, Keratosis alba, Serrated seborrheic keratosis, Verrucous seborrheic keratosis)

Superficial basal cell carcinoma (Superficial multicentric basal cell carcinoma)

Syringadenoma papilliferum (Syringocystadenoma papilliferum)

Syringofibroadenoma (Acrosyringeal nevus of Weedon and Lewis)

Syringoma

Systematized epidermal nevus

Thermal keratosis

Trichilemmal carcinoma

Trichilemmal cyst (Isthmus-catagen cyst, Pilar cyst)

Trichilemmoma

Trichoadenoma (Trichoadenoma of Nikolowski)

Trichoblastoma

Trichoblastic fibroma

Trichodiscoma

Trichofolliculoma

Unilateral palmoplantar verrucous nevus

Urethral caruncle

Verrucous carcinoma (Ackerman tumor, Carcinoma cuniculatum)

Verrucous cyst (Cystic papilloma)

Viral keratosis

Warty dyskeratoma (Isolated dyskeratosis follicularis)

Waxy keratosis of childhood (Kerinokeratosis papulosa)

Zoon’s vulvitis

Zosteriform speckled lentiginous nevus

Erythemas

Erythemas are reactive skin conditions in which there is blanchable redness.^[1][9]

Erythema annulare centrifugum (Deep gyrate erythema, Erythema perstans, Palpable migrating erythema, Superficial gyrate erythema)

Erythema gyratum repens (Gammel’s disease)

Erythema migrans (Erythema chronicum migrans)

Erythema multiforme

Erythema multiforme minor (Herpes simplex-associated erythema multiforme)

Erythema palmare

Generalized erythema

Necrolytic acral erythema

Necrolytic migratory erythema (Glucagonoma syndrome)

Genodermatoses

Genodermatoses are inherited genetic skin conditions often grouped into three categories: chromosomal, single gene, and polygenetic.^[64][65]

18q deletion syndrome

Acrodermatitis enteropathica

Acrogeria (Gottron syndrome)

Acrokeratosis verruciformis (Acrokeratosis verruciformis of Hopf)

Adams–Oliver syndrome

Adducted thumbs syndrome

Albright’s hereditary osteodystrophy

Angelman syndrome

Apert syndrome (Acrocephalosyndactyly)

Arthrogryposis–renal dysfunction–cholestasis syndrome (ARC syndrome)

Ataxia telangiectasia (Louis–Bar syndrome)

Atrichia with papular lesions

Atrophodermia vermiculata (Acne vermoulante, Acne vermoulanti, Atrophoderma reticulata symmetrica faciei, Atrophoderma reticulatum, Atrophoderma vermiculata, Atrophoderma vermiculatum, Atrophodermia reticulata symmetrica faciei, Atrophodermia ulerythematosa, Atrophodermie vermiculée des joues avec kératoses folliculaires, Folliculitis ulerythema reticulata, Folliculitis ulerythematous reticulata, Folliculitis ulerythemosa, Honeycomb atrophy, Ulerythema acneforme, Ulerythema acneiforme)

Autoimmune polyendocrinopathy–candidiasis–ectodermal dystrophy syndrome (APECED syndrome)

Bart syndrome

Bazex–Dupré–Christol syndrome (Bazex syndrome, Follicular atrophoderma and basal cell cacinomas)

Bloom syndrome (Bloom–Torre–Machacek syndrome)

Blue rubber bleb nevus syndrome

Brittle hair–intellectual impairment–decreased fertility–short stature syndrome (BIDS syndrome)

Cantú syndrome

Cardio-facio-cutaneous syndrome (Cardiofaciocutaneous syndrome)

Cartilage–hair hypoplasia (McKusick type metaphyseal chondrodysplasia)

Cerebral dysgenesis–neuropathy–ichthyosis–keratoderma syndrome (CEDNIK syndrome)

Childhood tumor syndrome

Chondrodysplasia punctata

Cicatricial junctional epidermolysis bullosa

Craniosynostosis–anal anomalies–porokeratosis syndrome (CAP syndrome)

Cockayne syndrome

Colobomas of the eye–heart defects–ichthyosiform dermatosis–mental retardation–ear defects syndrome (CHIME syndrome, Zunich neuroectodermal syndrome, Zunich–Kaye syndrome)

Congenital hemidysplasia with ichthyosiform erythroderma and limb defects syndrome (CHILD syndrome)

Conradi–Hünermann syndrome (Conradi–Hünermann–Happle syndrome, Happle syndrome, X-linked dominant chondrodysplasia punctata)

Costello syndrome

Cronkhite–Canada syndrome

Crouzon syndrome

Cutis verticis gyrata

Darier’s disease (Darier–White disease, Dyskeratosis follicularis, Keratosis follicularis)

 

 

Linear Darier disease

DeSanctis–Cacchione syndrome

Disseminated superficial actinic porokeratosis

Disseminated superficial porokeratosis

Dolichol kinase deficiency

Dominant dystrophic epidermolysis bullosa

Dyskeratosis congenita (Zinsser–Cole–Engman syndrome)

Dystrophic epidermolysis bullosa

Ectodermal dysplasia

Ectodermal dysplasia with corkscrew hairs

Ectrodactyly–ectodermal dysplasia–cleft syndrome (EEC syndrome, Split hand–split foot–ectodermal dysplasia–cleft syndrome)

Epidermolysis bullosa herpetiformis (Dowling–Meara epidermolysis bullosa simplex)

Epidermolysis bullosa simplex

Epidermolysis bullosa simplex of Ogna

Epidermolysis bullosa simplex with mottled pigmentation

Epidermolysis bullosa simplex with muscular dystrophy

Epidermolytic hyperkeratosis (Bullous congenital ichthyosiform erythroderma, Bullous ichthyosiform erythroderma)

Erythrokeratodermia with ataxia (Giroux–Barbeau syndrome)

Familial benign chronic pemphigus (Familial benign pemphigus, Hailey–Hailey disease)

Fanconi syndrome (Familial pancytopenia, Familial panmyelophthisis)

Focal dermal hypoplasia (Goltz syndrome)

Follicular atrophoderma

Franceschetti–Klein syndrome (Mandibulofacial dysostosis)

Gardner’s syndrome (Familial colorectal polyposis)

Gastrocutaneous syndrome

Generalized atrophic benign epidermolysis bullosa

Generalized epidermolysis bullosa simplex (Koebner variant of generalized epidermolysis bullosa simplex)

Generalized trichoepithelioma

Giant axonal neuropathy with curly hair

Gingival fibromatosis with hypertrichosis

Haber syndrome

Hallerman–Streiff syndrome

Harlequin-type ichthyosis (Harlequin baby, Harlequin fetus, Harlequin ichthyosis, Ichthyosis congenita, Ichthyosis congenita gravior)

Hay–Wells syndrome (AEC syndrome, Ankyloblepharon filiforme adnatum–ectodermal dysplasia–cleft palate syndrome, Ankyloblepharon–ectodermal defects–cleft lip and palate syndrome, Ankyloblepharon–ectodermal dysplasia–clefting syndrome)

Hereditary sclerosing poikiloderma

 

Keratosis pilaris

Heterochromia iridum

Holocarboxylase synthetase deficiency

Hypohidrotic ectodermal dysplasia (Anhidrotic ectodermal dysplasia, Christ–Siemens–Touraine syndrome)

Hypotrichosis–acro-osteolysis–onychogryphosis–palmoplantar keratoderma–periodontitis syndrome (HOPP syndrome)

Hypotrichosis–lymphedema–telangiectasia syndrome

Ichthyosis–brittle hair–impaired intelligence–decreased fertility–short stature syndrome (IBIDS syndrome, Sulfur-deficient brittle hair syndrome, Tay’s syndrome, Trichothiodystrophy, Trichothiodystrophy with ichthyosis)

Ichthyosis bullosa of Siemens (Ichthyosis exfoliativa)

Ichthyosis follicularis (Ichthyosis follicularis with alopecia and photophobia syndrome)

Ichthyosis linearis circumflexa

Ichthyosis prematurity syndrome

Ichthyosis vulgaris (Autosomal dominant ichthyosis, Ichthyosis simplex)

Neonatal ichthyosis–sclerosing cholangitis syndrome (Ichthyosis–sclerosing cholangitis syndrome, NISCH syndrome)

Incontinentia pigmenti achromians (Hypomelanosis of Ito)

Immune dysfunction–polyendocrinopathy–enteropathy–X-linked syndrome (IPEX syndrome)

Jaffe–Campanacci syndrome

Johanson–Blizzard syndrome

Johnson–McMillin syndrome

Joubert syndrome

Junctional epidermolysis bullosa

Junctional epidermolysis bullosa gravis (Epidermolysis bullosa letalis, Herlitz disease, Herlitz epidermolysis bullosa, Herlitz syndrome, Lethal junctional epidermolysis bullosa)

Junctional epidermolysis bullosa with pyloric atresia

Kabuki syndrome (Kabuki makeup syndrome, Niikawa–Kuroki syndrome)

Keratolytic winter erythema (Erythrokeratolysis hiemalis, Oudtshoorn disease, Oudtshoorn skin)

Keratosis follicularis spinulosa decalvans (Siemens-1 syndrome)

Keratosis linearis with ichthyosis congenital and sclerosing keratoderma syndrome (KLICK syndrome)

Keratosis pilaris atrophicans faciei (Folliculitis rubra, Keratosis pilaris rubra atrophicans faciei, Lichen pilare, Lichen pilaire ou xerodermie pilaire symmetrique de la face, Ulerythema ophryogenes, Xerodermi pilaire symmetrique de la face)

Keratosis pilaris

Kindler syndrome (Acrokeratotic poikiloderma, Bullous acrokeratotic poikiloderma of Kindler and Weary, Congenital poikiloderma with blisters and keratoses, Congenital poikiloderma with bullae and progressive cutaneous atrophy, Hereditary acrokeratotic poikiloderma, Hyperkeratosis–hyperpigmentation syndrome, Weary–Kindler syndrome)

Klinefelter syndrome

Klippel–Feil syndrome

Lamellar ichthyosis (Collodion baby)

Lelis syndrome

Lenz–Majewski syndrome

Leschke syndrome

Lethal acantholytic epidermolysis bullosa

Lhermitte–Duclos disease

Linear and whorled nevoid hypermelanosis (Linear nevoid hyperpigmentation, Progressive cribriform and zosteriform hyperpigmentation, Reticulate and zosteriform hyperpigmentation, Reticulate hyperpigmentation of Iijima and Naito and Uyeno, Zebra-like hyperpigmentation in whorls and streaks, Zebra-line hyperpigmentation)

Linear Darier disease (Acantholytic dyskeratotic epidermal nevus)

Linear porokeratosis

Localized epidermolysis bullosa simplex (Weber–Cockayne syndrome, Weber–Cockayne variant of generalized epidermolysis bullosa simplex)

Mandibuloacral dysplasia

Marinesco–Sjögren syndrome

McCune–Albright syndrome

McCusick syndrome

Metageria

Microphthalmia–dermal aplasia–sclerocornea syndrome (MIDAS syndrome)

Mitis junctional epidermolysis bullosa (Nonlethal junctional epidermolysis bullosa)

Mitochondrial myopathy–encephalopathy–lactic acidosis–stroke syndrome (MELAS syndrome)

Multiple lentigines syndrome (Cardiocutaneous syndrome, Gorlin syndrome II, Lentiginosis profusa syndrome, LEOPARD syndrome, Progressive cardiomyopathic lentiginosis)

Multiple pterygium syndrome

Multiple sulfatase deficiency (Austin disease, Mucosulfatidosis)

Naegeli–Franceschetti–Jadassohn syndrome (Chromatophore nevus of Naegeli)

Netherton syndrome

Neurofibromatosis type 1 (von Recklinghausen’s disease)

 

 

Neurofibromatosis type 1

Neurofibromatosis type 3 (Neurofibromatosis mixed type)

Neurofibromatosis type 4 (Neurofibromatosis variant type)

Neutral lipid storage disease (Dorfman–Chanarin syndrome)

Nonbullous congenital ichthyosiform erythroderma (Congenital ichthyosiform erythroderma)

Noonan syndrome

Oculocerebrocutaneous syndrome (Delleman–Oorthuys syndrome)

Oculodentodigital dysplasia

Odonto–Tricho–Ungual–Digital–Palmar syndrome

Oliver–McFarlane syndrome

Pachydermoperiostosis (Idiopathic hypertrophic osteoathorpathy, Touraine–Solente–Gole syndrome)

Peeling skin syndrome (Acral peeling skin syndrome, Continual peeling skin syndrome, Familial continual skin peeling, Idiopathic deciduous skin, Keratolysis exfoliativa congenita)

Pfeiffer syndrome

Photosensitivity–ichthyosis–brittle sulfur-deficient hair–impaired intelligence–decreased fertility–short stature syndrome (PIBI(D)S syndrome)

Pityriasis rotunda (Pityriasis circinata, Tinea circinata)

Plaque-type porokeratosis (Classic porokeratosis, Porokeratosis of Mibelli)

Polyneuropathy–organomegaly–endocrinopathy–monoclonal gammopathy–skin changes syndrome (Crow–Fukase syndrome, POEMS syndrome)

Polyostotic fibrous dysplasia (Albright’s disease)

Popliteal pterygium syndrome

Porokeratosis

Porokeratosis palmaris et plantaris disseminata

Prader–Willi syndrome

Progeria (Hutchinson–Gilford progeria syndrome, Hutchinson–Gilford syndrome, Progeria syndrome)

Progressive osseous heteroplasia

Progressive symmetric erythrokeratodermia (Erythrokeratodermia progressiva symmetrica)

Proteus syndrome

Proteus-like syndrome

Punctate porokeratosis

Rapp–Hodgkin syndrome (Rapp–Hodgkin ectodermal dysplasia syndrome)

Recessive dystrophic epidermolysis bullosa (Hallopeau–Siemens variant of epidermolysis bullosa, Hallopeau–Siemens disease)

Refsum’s disease (Heredopathia atactica polyneuritiformis, Phytanic acid storage disease)

Relapsing linear acantholytic dermatosis

Restrictive dermopathy

Rhizomelic chondrodysplasia punctata (Autosomal recessive chondrodysplasia punctata type 1, Chondrodystrophia calcificans punctata, Peroxisomal biogenesis disorder complementation group 11)

Rombo syndrome

Rothmund–Thomson syndrome (Poikiloderma congenitale)

Rud syndrome

Say syndrome

Scalp–ear–nipple syndrome (Finlay–Marks syndrome)

Schindler disease (Kanzaki disease, Alpha-N-acetylgalactosaminidase deficiency)

Schinzel–Giedion syndrome

Scleroatrophic syndrome of Huriez (Huriez syndrome, Palmoplantar keratoderma with scleroatrophy, Palmoplantar keratoderma with sclerodactyly, Scleroatrophic and keratotic dermatosis of the limbs, Sclerotylosis)

Segmental neurofibromatosis

Senter syndrome (Desmons’ syndrome)

Shabbir syndrome (Laryngo–onycho–cutaneous syndrome)

Silver–Russell syndrome

Sjögren–Larsson syndrome

 

 

X-linked ichthyosis

Skin fragility syndrome (Plakophilin 1 deficiency)

Supernumerary nipples–uropathies–Becker’s nevus syndrome (SNUB syndrome)

Terminal osseous dysplasia with pigmentary defects

Tooth and nail syndrome (Hypodontia with nail dysgenesis, Witkop syndrome)

Townes–Brocks syndrome

Transient bullous dermolysis of the newborn

Treacher Collins syndrome (Treacher Collins–Franceschetti syndrome)

Tricho–rhino–phalangeal syndrome

Tuberous sclerosis (Bourneville disease, Epiloia)

Turner syndrome

Ulnar–mammary syndrome

Van Der Woude syndrome

Von Hippel–Lindau syndrome

Watson syndrome

Werner syndrome (Adult progeria)

Westerhof syndrome

Whistling syndrome (Cranio-carpo-tarsal syndrome, Distal arthrogryposis type 2, Freeman–Sheldon syndrome, Windmill–Vane–Hand syndrome)

Wilson–Turner syndrome

Wolf–Hirschhorn syndrome (4p- syndrome)

X-linked ichthyosis (Steroid sulfatase deficiency, X-linked recessive ichthyosis)

X-linked recessive chondrodysplasia punctata

Xeroderma pigmentosum (Cockayne syndrome complex)

XXYY genotype

Zimmermann–Laband syndrome

Infection-related

Infection-related cutaneous conditions may be caused by bacteria, fungi, yeast, viruses, and/or parasites.

Bacterium-related

Bacterium-related cutaneous conditions often have distinct morphologic characteristics that may be an indication of a generalized systemic process or simply an isolated superficial infection.^[66][67]

Aeromonas infection

African tick bite fever

American tick bite fever (Rickettsia parkeri infection)

Arcanobacterium haemolyticum infection

Bacillary angiomatosis

Bejel (Endemic syphilis)

Blastomycosis-like pyoderma (Pyoderma vegetans)

Blistering distal dactylitis

Botryomycosis

Brill–Zinsser disease

Brucellosis (Bang’s disease, Malta fever, Undulant fever)

Bullous impetigo

Cat scratch disease (Cat scratch fever, English–Wear infection, Inoculation lymphoreticulosis, Subacute regional lymphadenitis)

Cellulitis

 

 

Cellulitis

Chancre

Chancroid (Soft chancre, Ulcus molle)

Chlamydial infection

Chronic lymphangitis

Chronic recurrent erysipelas

Chronic undermining burrowing ulcers (Meleney gangrene)

Chromobacteriosis infection

Condylomata lata

Cutaneous actinomycosis

Cutaneous anthrax infection

Cutaneous diphtheria infection

Cutaneous group B streptococcal infection

Cutaneous Pasteurella hemolytica infection

Cutaneous Streptococcus iniae infection

Dermatitis gangrenosa (Gangrene of the skin)

Desert sore (Barcoo rot, Diphtheric desert sore, Septic sore, Veldt sore)

Ecthyma

Ecthyma gangrenosum

Ehrlichiosis ewingii infection

Elephantiasis nostras

Endemic typhus (Murine typhus)

Epidemic typhus (Epidemic louse-borne typhus)

Erysipelas (Ignis sacer, Saint Anthony’s fire)

Erysipeloid of Rosenbach

Erythema marginatum

Erythrasma

External otitis (Otitis externa, Swimmer’s ear)

 

 

External otitis

Flea-borne spotted fever

Flinders Island spotted fever

Flying squirrel typhus

Folliculitis

Fournier gangrene (Fournier gangrene of the penis or scrotum)

Furunculosis (Boil)

Gas gangrene (Clostridial myonecrosis, Myonecrosis)

Glanders (Equinia, Farcy, Malleus)

Gonococcemia (Arthritis–dermatosis syndrome, Disseminated gonococcal infection)

Gonorrhea (Clap)

Gram-negative folliculitis

Gram-negative toe web infection

Granuloma inguinale (Donovanosis, Granuloma genitoinguinale, Granuloma inguinale tropicum, Granuloma venereum, Granuloma venereum genitoinguinale, Lupoid form of groin ulceration, Serpiginous ulceration of the groin, Ulcerating granuloma of the pudendum, Ulcerating sclerosing granuloma)

Green nail syndrome

Group JK corynebacterium sepsis

Haemophilus influenzae cellulitis

Helicobacter cellulitis

Hospital furunculosis

Hot tub folliculitis (Pseudomonas aeruginosa folliculitis)

Human granulocytotropic anaplasmosis

Human monocytotropic ehrlichiosis

Impetigo contagiosa

Japanese spotted fever

Leptospirosis (Fort Bragg fever, Pretibial fever, Weil’s disease)

Listeriosis

Ludwig’s angina

Lupoid sycosis

Lyme disease (Afzelius’ disease, Lyme borreliosis)

Lymphogranuloma venereum (Climatic bubo, Durand–Nicolas–Favre disease, Lymphogranuloma inguinale, Poradenitis inguinale, Strumous bubo)

Malakoplakia (Malacoplakia)

Mediterranean spotted fever (Boutonneuse fever)

Melioidosis (Whitmore’s disease)

Meningococcemia

Missouri Lyme disease

Mycoplasma infection

Necrotizing fasciitis (Flesh-eating bacteria syndrome)

Neonatal toxic shock-like exanthematous disease

Nocardiosis

Noma neonatorum

North Asian tick typhus

Ophthalmia neonatorum

 

 

Erysipelas

Oroya fever (Carrion’s disease)

Pasteurellosis

Perianal cellulitis (Perineal dermatitis, Streptococcal perianal disease)

Periapical abscess

Pinta

Pitted keratolysis (Keratolysis plantare sulcatum, Keratoma plantare sulcatum, Ringed keratolysis)

Plague

Primary gonococcal dermatitis

Pseudomonal pyoderma

Pseudomonas hot-foot syndrome

Pyogenic paronychia

Pyomyositis

Q fever

Queensland tick typhus

Rat-bite fever

Recurrent toxin-mediated perineal erythema

Rhinoscleroma

Rickettsia aeschlimannii infection

Rickettsialpox

Rocky Mountain spotted fever

Saber shin (Anterior tibial bowing)

Saddle nose

Salmonellosis

Scarlet fever

Scrub typhus (Tsutsugamushi fever)

Shigellosis

Staphylococcal scalded skin syndrome (Pemphigus neonatorum, Ritter’s disease)

Streptococcal intertrigo

Superficial pustular folliculitis (Impetigo of Bockhart, Superficial folliculitis)

Sycosis vulgaris (Barber’s itch, Sycosis barbae)

Syphilid

Syphilis (Lues)

Tick-borne lymphadenopathy

Toxic shock syndrome (Streptococcal toxic shock syndrome, Streptococcal toxic shock-like syndrome, Toxic streptococcal syndrome)

Trench fever (Five day fever, Quintan fever, Urban trench fever)

Tropical ulcer (Aden ulcer, Jungle rot, Malabar ulcer, Tropical phagedena)

Tularemia (Deer fly fever, Ohara’s disease, Pahvant Valley plague, Rabbit fever)

Verruga peruana

Vibrio vulnificus infection

Yaws (Bouba, Frambösie, Parangi, Pian)

Mycobacterium-related

Mycobacterium-related cutaneous conditions are caused by mycobacterium infections.^[66][68]

Aquarium granuloma (Fish tank granuloma, Swimming pool granuloma)

Borderline lepromatous leprosy

Borderline leprosy

Borderline tuberculoid leprosy

Buruli ulcer (Bairnsdale ulcer, Searl ulcer, Searle’s ulcer)

 

Buruli ulcer

Erythema induratum (Bazin disease)

Histoid leprosy

Lepromatous leprosy

Leprosy (Hansen’s disease)

Lichen scrofulosorum (Tuberculosis cutis lichenoides)

Lupus vulgaris (Tuberculosis luposa)

Miliary tuberculosis (Disseminated tuberculosis, Tuberculosis cutis acuta generalisata, Tuberculosis cutis disseminata)

Mycobacterium avium-intracellulare complex infection

Mycobacterium haemophilum infection

Mycobacterium kansasii infection

Papulonecrotic tuberculid

Primary inoculation tuberculosis (Cutaneous primary complex, Primary tuberculous complex, Tuberculous chancre)

Rapid growing mycobacterium infection

Scrofuloderma (Tuberculosis cutis colliquativa)

Tuberculosis cutis orificialis (Acute tuberculous ulcer, Orificial tuberculosis)

Tuberculosis verrucosa cutis (Lupus verrucosus, Prosector’s wart, Warty tuberculosis)

Tuberculous cellulitis

Tuberculous gumma (Metastatic tuberculous abscess, Metastatic tuberculous ulcer)

Tuberculoid leprosy

Mycosis-related

Mycosis-related cutaneous conditions are caused by fungi or yeasts, and may present as either a superficial or deep infection of the skin, hair, and/or nails.^[66]

African histoplasmosis

Alternariosis

Antibiotic candidiasis (Iatrogenic candidiasis)

Black piedra

Candidal intertrigo

Candidal onychomycosis

Candidal paronychia

Candidal vulvovaginitis

Candidid

Chromoblastomycosis (Chromomycosis, Cladosporiosis, Fonseca’s disease, Pedroso’s disease, Phaeosporotrichosis, Verrucous dermatitis)

Chronic mucocutaneous candidiasis

Coccidioidomycosis (California disease, Desert rheumatism, San Joaquin Valley fever, Valley fever)

Congenital cutaneous candidiasis

Cryptococcosis

Dermatophytid

Diaper candidiasis

Disseminated coccidioidomycosis (Coccidioidal granuloma)

Distal subungual onychomycosis

Entomophthoromycosis

Erosio interdigitalis blastomycetica

 

 

Favus

Favus

Fungal folliculitis (Majocchi granuloma)

Fusariosis

Geotrichosis

Granuloma gluteale infantum

Histoplasmosis (Cave disease, Darling’s disease, Ohio Valley disease, Reticuloendotheliosis)

Hyalohyphomycosis

Kerion

Lobomycosis (Keloidal blastomycosis, Lacaziosis, Lobo’s disease)

Mucormycosis

Mycetoma (Madura foot, Maduromycosis)

North American blastomycosis (Blastomycetic dermatitis, Blastomycosis, Gilchrist’s disease)

Onychomycosis (Dermatophytic onychomycosis, Ringworm of the nail, Tinea unguium)

Oral candidiasis (Thrush)

Otomycosis

Perianal candidiasis

Perlèche (Angular cheilitis)

Phaeohyphomycosis

Piedra (Trichosporosis)

Pityrosporum folliculitis

Primary cutaneous aspergillosis

Primary cutaneous coccidioidomycosis

Primary cutaneous histoplasmosis

Primary pulmonary coccidioidomycosis

Primary pulmonary histoplasmosis

Progressive disseminated histoplasmosis

Proximal subungual onychomycosis

Rhinosporidiosis

South American blastomycosis (Brazilian blastomycosis, Paracoccidioidal granuloma, paracoccidioidomycosis)

Sporotrichosis (Rose gardener’s disease)

Systemic candidiasis

Tinea barbae (Barber’s itch, Ringworm of the beard, Tinea sycosis)

 

 

Tinea barbae

Tinea capitis (Herpes tonsurans, Ringworm of the hair, Ringworm of the scalp, Scalp ringworm, Tinea tonsurans)

Tinea corporis (Ringworm, Tinea circinata, Tinea glabrosa)

Tinea corporis gladiatorum

Tinea cruris (Crotch itch, Eczema marginatum, Gym itch, Jock itch, Ringworm of the groin)

Tinea faciei

Tinea imbricata (Tokelau)

Tinea incognito

Tinea manuum

Tinea nigra (Superficial phaeohyphomycosis, Tinea nigra palmaris et plantaris)

Tinea pedis (Athlete’s foot, Ringworm of the foot)

Tinea versicolor (Dermatomycosis furfuracea, Pityriasis versicolor, Tinea flava)

White piedra

White superficial onychomycosis

Zygomycosis (Phycomycosis)

Parasitic infestations, stings, and bites

Parasitic infestations, stings, and bites in humans are caused by several groups of organisms belonging to the following phyla: Annelida, Arthropoda, Bryozoa, Chordata, Cnidaria, Cyanobacteria, Echinodermata, Nemathelminthes, Platyhelminthes, and Protozoa.^[66][69]

Acanthamoeba infection

Amebiasis cutis

Ant sting

Arachnidism

Balamuthia infection

Bedbug infestation (Bedbug bite, Cimicosis)

Bee and wasp stings

Blister beetle dermatitis

Bombardier beetle burn

Bristleworm sting

 

 

Creeping eruption

Centipede bite

Cheyletiella dermatitis

Chigger bite

Coolie itch

Copra itch

Coral dermatitis

Creeping eruption (Cutaneous larva migrans)

Cutaneous leishmaniasis (Aleppo boil, Baghdad boil, Bay sore, Biskra button, Chiclero ulcer, Delhi boil, Kandahar sore, Lahore sore, Leishmaniasis tropica, Oriental sore, Pian bois, Uta)

Cysticercosis cutis

Demodex mite bite

Dogger Bank itch

Dracunculiasis (Dracontiasis, Guinea worm disease, Medina worm)

Echinococcosis (Hydatid disease)

Elephantiasis tropica (Elephantiasis arabum)

Elephant skin

Enterobiasis (Oxyuriasis, Pinworm infection, Seatworm infection)

Erisipela de la costa

Funnel web spider bite

Gamasoidosis

Gnathostomiasis (Larva migrans profundus)

Grain itch (Barley itch, Mattress itch, Prairie itch, Straw itch)

Grocer’s itch

Head lice infestation (Cooties, Pediculosis capitis)

Hookworm disease (Ancylostomiasis, Ground itch, Necatoriasis, Uncinariasis)

Human trypanosomiasis

Hydroid dermatitis

Irukandji syndrome

Jellyfish dermatitis

Ked itch

Larva currens

Latrodectism (Widow spider bite)

Leech bite

Leopard skin

Lepidopterism (Caripito itch, Caterpillar dermatitis, Moth dermatitis)

Lizard bite

Lizard skin

Loaiasis (Calabar swelling, Fugitive swelling, Loa loa, Tropical swelling)

Loxoscelism (Brown recluse spider bite, Necrotic cutaneous loxoscelism)

Mal morando

Millipede burn

Mosquito bite

Mucocutaneous leishmaniasis (Espundia, Leishmaniasis americana)

Myiasis

Nairobi fly dermatitis (Kenya fly dermatitis, Nairobi eye)

Nematode dermatitis

Norwegian scabies (Crusted scabies)

 

 

Norwegian scabies

Onchocerciasis

Ophthalmia nodosa

Paederus dermatitis

Pediculosis corporis (Pediculosis vestimenti, Vagabond’s disease)

Pediculosis pubis (Crabs, Phthirus pubis, Pthirus pubis, Pubic lice)

Pneumocystosis (often classified as fungal)

Portuguese man-of-war dermatitis

Post-kala-azar dermal leishmaniasis (Post-kala-azar dermatosis)

Protothecosis

Pulicosis (Flea bites)

Reduviid bite

Scabies (Itch mite infestation, Seven-year itch)

Scorpion sting

Sea anemone dermatitis

Seabather’s eruption (Sea lice)

Sea urchin injury

Seaweed dermatitis

Snake bite

Sowda

Sparganosis

Spider bite

Stingray injury

Swimmer’s itch (Cercarial dermatitis, Schistosome cercarial dermatitis)

 

 

Swimmer’s itch

Tarantula bite

Tick bite

Toxoplasmosis

Trichinosis

Trichomoniasis

Tungiasis (Bicho de pie, Chigoe flea bite, Jigger bite, Nigua, Pique)

Visceral leishmaniasis (Dumdum fever, Kala-azar)

Visceral schistosomiasis (Bilharziasis)

Viscerotropic leishmaniasis

Wheat warehouse itch

Virus-related

Virus-related cutaneous conditions are caused by two main groups of viruses–DNA and RNA types–both of which are obligatory intracellular parasites.^[66][70]

Alphavirus infection

Asymmetric periflexural exanthem of childhood (Unilateral laterothoracic exanthem)

B virus infection

Boston exanthem disease

Bovine papular stomatitis

Bowenoid papulosis

Buffalopox

Butcher’s wart

Chikungunya fever

Condylomata acuminata

Congenital rubella syndrome

Cowpox

Cytomegalic inclusion disease

Dengue (Break-bone fever)

Disseminated herpes zoster

Eczema herpeticum (Kaposi’s varicelliform eruption)

 

 

Eczema vaccinatum

Eczema vaccinatum

Epidermodysplasia verruciformis

Eruptive pseudoangiomatosis

Erythema infectiosum (Fifth disease, Slapped cheek disease)

Exanthem of primary HIV infection (Acute retroviral syndrome)

Farmyard pox

Generalized vaccinia

Genital herpes (Herpes genitalis, Herpes progenitalis)

Gianotti–Crosti syndrome (Infantile papular acrodermatitis, Papular acrodermatitis of childhood, Papulovesicular acrolocated syndrome)

Giant condyloma acuminatum (Buschke–Löwenstein tumor)

Hand-foot-and-mouth disease

Heck’s disease (Focal epithelial hyperplasia)

Hemorrhagic fever with renal syndrome

Hepatitis B

Hepatitis C

Herpangina

Herpes gladiatorum (Scrum pox)

Herpes simplex

Herpes zoster oticus (Ramsay–Hunt syndrome)

Herpetic keratoconjunctivitis

Herpetic sycosis

Herpetic whitlow

HIV-associated pruritus

Human monkeypox

Human T-lymphotropic virus 1 infection

Human tanapox

Immune reconstitution inflammatory syndrome (Immune recovery syndrome)

Infectious mononucleosis (Glandular fever)

Inflammatory skin lesions following zoster infection (Isotopic response)

Intrauterine herpes simplex

 

 

Kaposi sarcoma

Kaposi sarcoma

Lassa fever

Lipschütz ulcer (Ulcus vulvae acutum)

Measles (Rubeola, Morbilli)

Milker’s nodule

Modified varicella-like syndrome

Molluscum contagiosum

Neonatal herpes simplex

Ophthalmic zoster

Orf (Contagious pustular dermatosis, Ecthyma contagiosum, Infectious labial dermatitis, Sheep pox)

Orolabial herpes (Herpes labialis)

Papular purpuric gloves and socks syndrome

Pigmented wart

Postherpetic neuralgia (Zoster-associated pain)

Post-vaccination follicular eruption

Progressive vaccinia (Vaccinia gangrenosum, Vaccinia necrosum)

Pseudocowpox

Rabies

Recurrent respiratory papillomatosis (Laryngeal papillomatosis)

Rift Valley fever

Roseola infantum (Exanthem subitum, Exanthema subitum, Sixth disease)

Roseola vaccinia

Rubella (German measles)

Sandfly fever (Pappataci fever, Phlebotomus fever)

Sealpox

Varicella (Chickenpox)

Variola major (Smallpox)

Verruca plana (Flat warts)

Verruca plantaris (Plantar wart)

Verruca vulgaris (Wart)

Verrucae palmares et plantares

Viral-associated trichodysplasia (Ciclosporin-induced folliculodystrophy)

Wasting syndrome

West Nile virus infection

Zoster (Herpes zoster, Shingles)

Zoster sine herpete

Lichenoid eruptions

Lichenoid eruptions are dermatoses related to the unique, common inflammatory disorder lichen planus, which affects the skin, mucous membranes, nails, and hair.^[71][72][73]

Annular lichen planus

Atrophic lichen planus

Bullous lichen planus (Vesiculobullous lichen planus)

Erythema dyschromicum perstans (Ashy dermatosis, Dermatosis cinecienta)

Giant cell lichenoid dermatitis

Hepatitis-associated lichen planus

Hypertrophic lichen planus (Lichen planus verrucosus)

Idiopathic eruptive macular pigmentation

Inverse lichen planus

Keratosis lichenoides chronica (Nékam’s disease)

Kraurosis vulvae

Lichen nitidus

Lichen planus actinicus (Actinic lichen niditus, Actinic lichen planus, Lichen planus atrophicus annularis, Lichen planus subtropicus, Lichen planus tropicus, Lichenoid melanodermatitis, Lichenoid melanodermatosis, Summertime actinic lichenoid eruption)

Lichen planus pemphigoides

Lichen planus pigmentosus

Lichen planus–lichen sclerosus overlap syndrome

Lichen ruber moniliformis

Lichen sclerosus (Lichen sclerosus et atrophicus)

Lichen striatus (Blaschko linear acquired inflammatory skin eruption, Linear lichenoid dermatosis)

Lichen verrucosus et reticularis

Lichenoid trikeratosis

Lichenoid dermatitis

Lichenoid reaction of graft-versus-host disease

Linear lichen planus

Peno-gingival syndrome

Ulcerative lichen planus

Vulvovaginal gingival syndrome

Vulvovaginal lichen planus

Lymphoid-related

Lymphoid-related cutaneous conditions are a group of disorders characterized by collections of lymphocyte cells within the skin.^[74]

Adult T-cell leukemia/lymphoma

Angiocentric lymphoma (Extranodal natural killer cell lymphoma, Nasal-type NK lymphoma, NK/T-cell lymphoma, Polymorphic/malignant midline reticulosis)

Angioimmunoblastic T-cell lymphoma (Angioimmunoblastic lymphadenopathy with dysproteinemia)

Blastic NK-cell lymphoma

CD30+ cutaneous T-cell lymphoma (Primary cutaneous anaplastic large cell lymphoma)

Cutaneous lymphoid hyperplasia (Borrelial lymphocytoma, Lymphadenosis benigna cutis, Lymphocytoma cutis, Pseudolymphoma, Pseudolymphoma of Spiegler and Fendt, Sarcoidosis of Spiegler and Fendt, Spiegler–Fendt lymphoid hyperplasia, Spiegler–Fendt sarcoid)

 

 

Cutaneous lymphoid hyperplasia

Cutaneous lymphoid hyperplasia with bandlike and perivascular patterns

Cutaneous lymphoid hyperplasia with nodular pattern (Nodular pattern of cutaneous lymphoid hyperplasia)

Diffuse large B-cell lymphoma (Primary cutaneous large B-cell lymphoma)

Granulocytic sarcoma (Chloroma, Myeloid sarcoma)

Granulomatous slack skin

Hairy-cell leukemia

Hodgkin’s disease

Ichthyosis acquisita (Acquired ichthyosis)

Intravascular large B-cell lymphoma (Angiotropic large cell lymphoma, Intralymphatic lymphomatosis, Intravascular lymphomatosis, Malignant angioendotheliomatosis)

Jessner lymphocytic infiltrate of the skin (Benign lymphocytic infiltration of the skin, Jessner lymphocytic infiltration of the skin, Jessner–Kanof lymphocytic infiltration of the skin, Lymphocytic infiltrate of Jessner)

Kikuchi’s disease (Histiocytic necrotizing lymphadenitis)

Large plaque parapsoriasis (Parapsoriasis en plaques)

Lennert lymphoma (Lymphoepitheliod lymphoma)

Leukemia cutis

Lymphoma cutis

Lymphomatoid granulomatosis

Lymphomatoid papulosis

Malignant histiocytosis (Histiocytic medullary reticulosis)

Marginal zone B-cell lymphoma

Mucosa-associated lymphoid tissue lymphoma

Mycosis fungoides

Non-mycosis fungoides CD30− cutaneous large T-cell lymphoma

Nonspecific cutaneous conditions associated with leukemia (Leukemid)

Pagetoid reticulosis (Acral mycoses fungoides, Localized epidermotropic reticulosis, Mycosis fungoides palmaris et plantaris, Unilesional mycosis fungoides, Woringer–Kolopp disease)

Pityriasis lichenoides chronica (Chronic guttate parapsoriasis, Chronic pityriasis lichenoides, Dermatitis psoriasiformis nodularis, Parapsoriasis chronica, Parapsoriasis lichenoides chronica)

Pityriasis lichenoides et varioliformis acuta (Acute guttate parapsoriasis, Acute parapsoriasis, Acute pityriasis lichenoides, Mucha–Habermann disease, Parapsoriasis acuta, Parapsoriasis lichenoides et varioliformis acuta, Parapsoriasis varioliformis)

Plasmacytoma

 

 

Mycosis fungoides

Plasmacytosis

Pleomorphic T-cell lymphoma (Non-mycosis fungoides CD30− pleomorphic small/medium sized cutaneous T-cell lymphoma)

Polycythemia vera (Erythremia)

Primary cutaneous follicular lymphoma (Follicular center cell lymphoma, Follicular center lymphoma)

Primary cutaneous immunocytoma

Primary cutaneous marginal zone lymphoma

Retiform parapsoriasis

Secondary cutaneous CD30+ large cell lymphoma

Sézary syndrome

Sinus histiocytosis with massive lymphadenopathy (Rosai–Dorfman disease)

Subcutaneous T-cell lymphoma (Panniculitis-like T-cell lymphoma)

Vesiculopustular eruption and leukemoid reaction in Down syndrome

Melanocytic nevi and neoplasms

Melanocytic nevi and neoplasms are caused by either a proliferation of (1) melanocytes, or (2) nevus cells, a form of melanocyte that lack dendritic processes.^[75][76]

Acral nevus (Melanocytic nevus of acral skin, Melanocytic nevus with intraepidermal ascent of cells)

Amelanotic blue nevus (Hypomelanotic blue nevus)

 

 

Becker’s nevus

Balloon cell nevus

Bannayan–Riley–Ruvalcaba syndrome

Becker’s nevus (Becker’s melanosis, Becker’s pigmentary hamartoma, Nevoid melanosis, Pigmented hairy epidermal nevus)

Benign melanocytic nevus (Banal nevus, Common acquired melanocytic nevus, Mole, Nevocellular nevus, Nevocytic nevus)

Blue nevus (Blue neuronevus, Dermal melanocytoma, Nevus bleu)

Blue nevus of Jadassohn–Tièche (Common blue nevus, Nevus ceruleus)

Carney complex (LAMB syndrome, NAME syndrome)

Cellular blue nevus

Centrofacial lentiginosis

Congenital melanocytic nevus

Deep penetrating nevus

Dysplastic nevus (Atypical mole, Atypical nevus, B-K mole, Clark’s nevus, Dysplastic melanocytic nevus, Nevus with architectural disorder)

Dysplastic nevus syndrome (B-K mole syndrome, Familial atypical multiple mole–melanoma syndrome, Familial melanoma syndrome)

Ephelis (Freckle)

Epithelioid blue nevus

Generalized lentiginosis

Giant pigmented nevus (Bathing trunk nevus, Congenital nevomelanocytic nevus, Garment nevus, Giant hairy nevus, Nevus pigmentosus et pilosus)

Halo nevus (Leukoderma acquisitum centrifugum, Perinevoid vitiligo, Sutton nevus)

Hori’s nevus (Acquired bilateral nevus of Ota-like macules)

Inherited patterned lentiginosis in black persons

Ink spot lentigo (Sunburn lentigo)

Laugier–Hunziker syndrome

Lentigo simplex (Simple lentigo)

Malignant blue nevus

Medium-sized congenital nevocytic nevus

Melanoacanthoma

Melanocytic tumors of uncertain malignant potential

Moynahan syndrome

Mucosal lentigines (Labial and penile and vulvar melanosis, Melanotic macules)

Nevus of Ito (Nevus fuscoceruleus acromiodeltoideus)

Nevus of Ota (Congenital melanosis bulbi, Melanosis bulborum and aberrant dermal melanocytosis, Nevus fuscoceruleus ophthalmomaxillaris, Oculodermal melanocytosis, Oculomucodermal melanocytosis)

Nevus spilus (Speckled lentiginous nevus, Zosteriform lentiginous nevus)

Partial unilateral lentiginosis (Segmental lentiginosis)

Peutz–Jeghers syndrome

Pigmented spindle cell nevus (Pigmented spindle cell tumor of Reed, Pigmented variant of Spitz nevus)

Pseudomelanoma (Recurrent melanocytic nevus, Recurrent nevus)

PUVA lentigines

Small-sized congenital nevocytic nevus

Spitz nevus (Benign juvenile melanoma, Epithelioid and spindle cell nevus, Spitz’s juvenile melanoma)

Solar lentigo (Lentigo senilis, Liver spot, Old age spot, Senile freckle)

Melanoma

Melanoma is a malignant proliferation of melanocytes and the most aggressive type of skin cancer.

Acral lentiginous melanoma

 

 

Nodular melanoma

Amelanotic melanoma

Animal-type melanoma

Desmoplastic melanoma (Neurotropic melanoma, Spindled melanoma)

Lentigo maligna (Lentiginous melanoma on sun-damaged skin)

Lentigo maligna melanoma

Melanoma with features of a Spitz nevus (Spitzoid melanoma)

Melanoma with small nevus-like cells (Small cell melanoma)

Mucosal melanoma

Nevoid melanoma

Nodular melanoma

Polypoid melanoma

Soft-tissue melanoma (Clear-cell sarcoma, Melanoma of the soft parts)

Superficial spreading melanoma (Superficially spreading melanoma)

Uveal melanoma

Monocyte- and macrophage-related

Monocyte- and macrophage-related cutaneous conditions are characterized histologically by infiltration of the skin by monocyte and/or macrophage cells,^[10] often divided into several categories, including granulomatous disease,^[80] histiocytoses,^[81] and sarcoidosis.^[82]

Actinic granuloma (O’Brien granuloma)

Annular elastolytic giant cell granuloma (Giant cell elastophagocytosis, Meischer’s granuloma, Miescher’s granuloma of the face)

Annular sarcoidosis

 

 

Generalized granuloma annulare

Benign cephalic histiocytosis (Histiocytosis with intracytoplasmic worm-like bodies)

Congenital self-healing reticulohistiocytosis (Hashimoto–Pritzker disease, Hashimoto–Pritzker syndrome)

Erythrodermic sarcoidosis

Generalized eruptive histiocytoma (Eruptive histiocytoma, Generalized eruptive histiocytosis)

Generalized granuloma annulare

Giant cell reticulohistiocytoma (Solitary reticulohistiocytoma, Solitary reticulohistiocytosis)

Granuloma annulare in HIV disease

Granuloma multiforme (Leiker)

Hand–Schüller–Christian disease

Heerfordt’s syndrome

Hereditary progressive mucinous histiocytosis

Hypopigmented sarcoidosis

Ichthyosiform sarcoidosis

Indeterminate cell histiocytosis

Interstitial granulomatous drug reaction

Langerhans cell histiocytosis (Histiocytosis X)

Letterer–Siwe disease

Localized granuloma annulare

Löfgren syndrome

Lupus pernio

Morpheaform sarcoidosis

Mucosal sarcoidosis

Multicentric reticulohistiocytosis

Necrobiotic xanthogranuloma (Necrobiotic xanthogranuloma with paraproteinemia)

Non-X histiocytosis

Papular sarcoid

Papular xanthoma

Patch-type granuloma annulare (Macular granuloma annulare)

Perforating granuloma annulare

 

Systemic sarcoidosis

Progressive nodular histiocytosis

Reticulohistiocytoma

Scar sarcoid (Sarcoidosis in scars)

Sea-blue histiocytosis

Subcutaneous granuloma annulare (Deep granuloma annulare, Pseudorheumatoid nodule)

Subcutaneous sarcoidosis (Darier–Roussy disease, Darier–Roussy sarcoid)

Systemic sarcoidosis

Ulcerative sarcoidosis

Xanthoma disseminatum (Disseminated xanthosiderohistiocytosis, Montgomery syndrome)

Mucinoses

Mucinoses are a group of conditions caused by dermal fibroblasts producing abnormally large amounts of mucopolysaccharides.^[33]

 

 

Scleroderma

Acral persistent papular mucinosis

Atypical lichen myxedematosus (Intermediate lichen myxedematosus)

Atypical tuberous myxedema (Jadassohn–Dosseker syndrome)

Cutaneous focal mucinosis

Cutaneous lupus mucinosis (Papular and nodular mucinosis in lupus erythematosus, Papular and nodular mucinosis of Gold, Papulonodular mucinosis in lupus erythematosus)

Discrete papular lichen myxedematosus

Eccrine mucinosis

Follicular mucinosis (Alopecia mucinosa, Mucinosis follicularis, Pinkus’ follicular mucinosis, Pinkus’ follicular mucinosis–benign primary form)

Localized lichen myxedematosus

Myxoid cyst (Digital mucous cyst, Mucous cyst)

Myxoid lipoblastoma

Neuropathia mucinosa cutanea

Nodular lichen myxedematosus

Papular mucinosis (Generalized lichen myxedematosus, Sclerodermoid lichen myxedematosus, Scleromyxedema)

Papular mucinosis of infancy (Cutaneous mucinosis of infancy)

Perifollicular mucinosis

Reticular erythematous mucinosis (Midline mucinosis, Plaque-like cutaneous mucinosis, REM syndrome)

Scleroderma

Self-healing juvenile cutaneous mucinosis

Self-healing papular mucinosis

Stiff skin syndrome (Congenital fascial dystrophy)

Neurocutaneous

 

Neurocutaneous conditions are due organic nervous system disease or are psychiatric in etiology.^[83][84]

Atypical chronic pain syndrome

Body dysmorphic disorder (Dysmorphic syndrome, Dysmorphophobia)

Brachioradial pruritus

Bromidrosiphobia

Complex regional pain syndrome (Reflex sympathetic dystrophy)

Congenital insensitivity to pain with anhidrosis

Delusional parasitosis (Delusions of parasitosis, Ekbom syndrome, Monosymptomatic hypochondriacal psychosis)

Dermatothlasia

Factitious dermatitis (Dermatitis artefacta, Factitial dermatitis)

Glossodynia (Burning mouth syndrome, Burning tongue, Orodynia)

Levator ani syndrome

Malum perforans pedis (Neurotrophic ulcer, Perforating ulcer of the foot)

Meralgia paresthetica (Roth–Bernhardt disease)

Neurotic excoriations

Notalgia paresthetica (Hereditary localized pruritus, Posterior pigmented pruritic patch, Subscapular pruritus)

Postencephalitic trophic ulcer

Psychogenic pruritus

Riley–Day syndrome (Familial dysautonomia)

Scalp dysesthesia

Sciatic nerve injury

Scrotodynia

Syringomyelia (Morvan’s disease)

Traumatic neuroma (Amputation neuroma)

Trichotillomania (Trichotillosis)

Trigeminal neuralgia (Tic douloureux)

Trigeminal trophic lesion (Trigeminal trophic syndrome)

Vulvodynia (Vestibulodynia)

Noninfectious immunodeficiency-related

Noninfectious immunodeficiency-related cutaneous conditions are caused by T-cell and/or B-cell dysfunction.

Bare lymphocyte syndrome

Chronic granulomatous disease (Bridges–Good syndrome, Chronic granulomatous disorder, Quie syndrome)

Common variable immunodeficiency (Acquired hypogammaglobulinemia)

Complement deficiency

DiGeorge syndrome (DiGeorge anomaly, Thymic hypoplasia)

Graft-versus-host disease

Griscelli syndrome

Hyper-IgE syndrome (Buckley syndrome, Job syndrome)

Immunodeficiency with hyper-IgM

Immunodeficiency–centromeric instability–facial anomalies syndrome (ICF syndrome)

Isolated IgA deficiency

Isolated primary IgM deficiency

Janus kinase 3 deficiency

Leukocyte adhesion molecule deficiency

LIG4 syndrome

Myeloperoxidase deficiency

Neutrophil immunodeficiency syndrome

Nezelof syndrome (Thymic dysplasia with normal immunoglobulins)

Omenn syndrome

Purine nucleoside phosphorylase deficiency

Severe combined immunodeficiency (Alymphocytosis, Glanzmann–Riniker syndrome, Severe mixed immunodeficiency syndrome, Thymic alymphoplasia)

Shwachman–Bodian–Diamond syndrome

Thymoma with immunodeficiency (Good syndrome)

Transient hypogammaglobulinemia of infancy

Warts–hypogammaglobulinemia–infections–myelokathexis syndrome (WHIM syndrome)

Wiskott–Aldrich syndrome

X-linked agammaglobulinemia (Bruton syndrome, Sex-linked agammaglobulinemia)

X-linked hyper-IgM syndrome

X-linked hypogammaglobulinemia

X-linked lymphoproliferative disease (Duncan’s disease)

X-linked neutropenia

Nutrition-related

Nutrition-related cutaneous conditions are caused by malnutrition due to an improper or inadequate diet.^[87][88]

Biotin deficiency

Carotenemia

Essential fatty acid deficiency

Folic acid deficiency

Hypervitaminosis A

Hypovitaminosis A (Phrynoderma)

Iron deficiency

 

 

Kwashiorkor

Kwashiorkor

Lycopenemia

Maple syrup urine disease

Marasmus

Niacin deficiency (Pellagra, Vitamin B₃ deficiency)

Selenium deficiency

Vitamin B₁ deficiency (Beriberi, Thiamine deficiency)

Vitamin B₁₂ deficiency (Cyanocobalamin deficiency)

Vitamin B₂ deficiency (Ariboflavinosis, Riboflavin deficiency)

Vitamin B₆ deficiency (Pyridoxine deficiency)

Vitamin B₆ excess (Pyridoxine excess)

Vitamin C deficiency (Scurvy)

Vitamin K deficiency

Zinc deficiency

Papulosquamous hyperkeratotic

Papulosquamous hyperkeratotic cutaneous conditions are those that present with papules and scales caused by a thickening of the stratum corneum.^[9]

Confluent and reticulated papillomatosis (Confluent and reticulated papillomatosis of Gougerot and Carteaud, Familial cutaneous papillomatosis, Familial occurrence of confluent and reticulated papillomatosis)

Digitate dermatosis

Drug-induced keratoderma

Exfoliative dermatitis (Dermatitis exfoliativa, Erythroderma, Red man syndrome)

Florid cutaneous papillomatosis

Granular parakeratosis (Axillary granular parakeratosis, Intertriginous granular parakeratosis)

Keratolysis exfoliativa (Lamellar dyshidrosis, Recurrent focal palmar peeling, Recurrent palmar peeling)

Keratosis punctata of the palmar creases (Hyperkeratosis penetrans, Hyperkeratosis punctata, Keratodermia punctata, Keratosis punctata, Keratotic pits of the palmar creases, Lenticular atrophia of the palmar creases, Punctate keratosis of the palmar creases)

Meesmann corneal dystrophy

Paraneoplastic keratoderma

Pityriasis rosea (Pityriasis rosea Gibert)

Pityriasis rubra pilaris (Devergie’s disease, Lichen ruber acuminatus, Lichen ruber pilaris)

Pure hair-nail type ectodermal dysplasia

Small plaque parapsoriasis (Chronic superficial dermatitis)

Tripe palms

Xanthoerythrodermia perstans

Palmoplantar keratodermas

Palmoplantar keratodermas are a diverse group of hereditary and acquired keratodermas in which there is hyperkeratosis of the skin of the palms and soles.^[89]

 

 

Palmoplantar keratoderma

Acrokeratoelastoidosis of Costa (Keratoelastoidosis marginalis)

Aquagenic keratoderma (Acquired aquagenic palmoplantar keratoderma, Aquagenic syringeal acrokeratoderma, Aquagenic wrinkling of the palms, Transient reactive papulotranslucent acrokeratoderma)

Bart–Pumphrey syndrome (Palmoplantar keratoderma with knuckle pads and leukonychia and deafness)

Camisa disease

Carvajal syndrome (Striate palmoplantar keratoderma with woolly hair and cardiomyopathy, Striate palmoplantar keratoderma with woolly hair and left ventricular dilated cardiomyopathy)

Corneodermatoosseous syndrome (CDO syndrome)

Diffuse epidermolytic palmoplantar keratoderma (Palmoplantar keratoderma cum degeneratione granulosa Vörner, Vörner’s epidermolytic palmoplantar keratoderma, Vörner keratoderma)

Diffuse nonepidermolytic palmoplantar keratoderma (Diffuse orthohyperkeratotic keratoderma, Hereditary palmoplantar keratoderma, Keratosis extremitatum progrediens, Keratosis palmoplantaris diffusa circumscripta, Tylosis, Unna–Thost disease, Unna–Thost keratoderma)

Erythrokeratodermia variabilis (Erythrokeratodermia figurata variabilis, Keratosis extremitatum progrediens, Keratosis palmoplantaris transgrediens et progrediens, Mendes da Costa syndrome, Mendes da Costa type erythrokeratodermia, Progressive symmetric erythrokeratoderma)

Focal acral hyperkeratosis (Acrokeratoelastoidosis lichenoides, Degenerative collagenous plaques of the hand)

Focal palmoplantar and gingival keratosis

Focal palmoplantar keratoderma with oral mucosal hyperkeratosis (Focal epidermolytic palmoplantar keratoderma, Hereditary painful callosities, Hereditary painful callosity syndrome, Keratosis follicularis, Keratosis palmoplantaris nummularis, Nummular epidermolytic palmoplantar keratoderma)

Haim–Munk syndrome (Palmoplantar keratoderma with periodontitis and arachnodactyly and acro-osteolysis)

Hidrotic ectodermal dysplasia (Alopecia congenita with keratosis palmoplantaris, Clouston syndrome, Clouston’s hidrotic ectodermal dysplasia, Fischer–Jacobsen–Clouston syndrome, Keratosis palmaris with drumstick fingers, Palmoplantar keratoderma and clubbing)

Howel–Evans syndrome (Familial keratoderma with carcinoma of the esophagus, Focal non-epidermolytic palmoplantar keratoderma with carcinoma of the esophagus, Palmoplantar ectodermal dysplasia type III, Palmoplantar keratoderma associated with esophageal cancer, Tylosis, Tylosis–esophageal carcinoma)

Hystrix-like ichthyosis–deafness syndrome (HID syndrome)

Keratoderma climactericum (Acquired plantar keratoderma, Climacteric keratoderma, Haxthausen’s disease)

Keratosis punctata palmaris et plantaris (Buschke–Fischer–Brauer disease, Davis Colley disease, Keratoderma disseminatum palmaris et plantaris, Keratosis papulosa, Keratoderma punctatum, Keratodermia punctata, Keratoma hereditarium dissipatum palmare et plantare, Palmar and plantar seed dermatoses, Palmar keratoses, Papulotranslucent acrokeratoderma, Punctate keratoderma, Punctate keratoses of the palms and soles, Maculosa disseminata)

Keratitis–ichthyosis–deafness syndrome (Erythrokeratodermia progressiva Burns, Ichthyosiform erythroderma with corneal involvement and deafness, KID syndrome)

Mal de Meleda (Acral keratoderma, Gamborg–Nielsen keratoderma, Mutilating palmoplantar keratoderma of the Gamborg–Nielsen type, Palmoplantar ectodermal dysplasia type VIII, Palmoplantar keratoderma of the Norrbotten type)

Naxos syndrome (Diffuse non-epidermolytic palmoplantar keratoderma with woolly hair and cardiomyopathy, Diffuse palmoplantar keratoderma with woolly hair and arrythmogenic right ventricular cardiomyopathy of Naxos, Naxos disease)

Olmsted syndrome (Mutilating palmoplantar keratoderma with periorificial keratotic plaques, Mutilating palmoplantar keratoderma with periorificial plaques, Polykeratosis of Touraine)

Pachyonychia congenita type I (Jadassohn–Lewandowsky syndrome)

Pachyonychia congenita type II (Jackson–Lawler pachyonychia congenita, Jackson–Sertoli syndrome)

Palmoplantar keratoderma and spastic paraplegia (Charcot–Marie–Tooth disease with palmoplantar keratoderma and nail dystrophy)

Palmoplantar keratoderma of Sybert (Greither palmoplantar keratoderma, Greither syndrome, Keratosis extremitatum hereditaria progrediens, Keratosis palmoplantaris transgrediens et progrediens, Sybert keratoderma, Transgrediens and progrediens palmoplantar keratoderma)

Papillon–Lefèvre syndrome (Palmoplantar keratoderma with periodontitis)

Porokeratosis plantaris discreta

Punctate palmoplantar keratoderma

Schöpf–Schulz–Passarge syndrome (Eyelid cysts with palmoplantar keratoderma and hypodontia and hypotrichosis)

Scleroatrophic syndrome of Huriez (Huriez syndrome, Palmoplantar keratoderma with scleroatrophy, Palmoplantar keratoderma with sclerodactyly, Scleroatrophic and keratotic dermatosis of the limbs, Sclerotylosis)

Striate palmoplantar keratoderma (Acral keratoderma, Brünauer–Fuhs–Siemens type of palmoplantar keratoderma, Focal non-epidermolytic palmoplantar keratoderma, Keratosis palmoplantaris varians, Palmoplantar keratoderma areata, Palmoplantar keratoderma striata, Wachter keratoderma, Wachters palmoplantar keratoderma)

Spiny keratoderma (Porokeratosis punctata palmaris et plantaris, Punctate keratoderma, Punctate porokeratosis of the palms and soles)

Tyrosinemia type II (Oculocutaneous tyrosinemia, Richner–Hanhart syndrome)

Vohwinkel syndrome (Keratoderma hereditaria mutilans, Keratoma hereditaria mutilans, Mutilating keratoderma of Vohwinkel, Mutilating palmoplantar keratoderma)

Pregnancy-related

Pregnancy-related cutaneous conditions are a group of skin changes observed during pregnancy.^[90][91]

Impetigo herpetiformis

Intrahepatic cholestasis of pregnancy (Cholestasis of pregnancy, Jaundice of pregnancy, Obstetric cholestasis, Prurigo gravidarum)

Linea nigra

Pemphigoid gestationis (Gestational pemphigoid, Herpes gestationis)

Prurigo gestationis (Besnier prurigo, Early-onset prurigo of pregnancy, Linear IgM dermatosis of pregnancy, Papular dermatitis of pregnancy, Prurigo of pregnancy, Spangler’s papular dermatitis of pregnancy)

Pruritic folliculitis of pregnancy

Pruritic urticarial papules and plaques of pregnancy (Late-onset prurigo of pregnancy, Polymorphic eruption of pregnancy, PUPPP syndrome, Toxemic rash of pregnancy, Toxic erythema of pregnancy)

Striae gravidarum

Pruritic

Pruritus, commonly known as itchiness, is a sensation exclusive to the skin, and characteristic of many skin conditions.^[92][93]

Adult blaschkitis

Aquadynia

Aquagenic pruritus

Biliary pruritus

Cholestatic pruritus

Drug-induced pruritus

Hydroxyethyl starch-induced pruritus

Lichen simplex chronicus (Neurodermatitis)

 

 

Lichen simplex chronicus

Prion pruritus

Prurigo nodularis

Prurigo pigmentosa

Prurigo simplex

Pruritus ani

Pruritus scroti

Pruritus vulvae

Puncta pruritica (Itchy points)

Scalp pruritus

Senile pruritus

Uremic pruritus (Renal pruritus)

Psoriasis

Psoriasis is a common, chronic, and recurrent inflammatory disease of the skin characterized by circumscribed, erythematous, dry, scaling plaques.^[94][95][96]

 

Psoriasis vulgaris

Annular pustular psoriasis

Drug-induced psoriasis

Exanthematic pustular psoriasis

Generalized pustular psoriasis (Pustular psoriasis of von Zumbusch)

Guttate psoriasis (Eruptive psoriasis)

Inverse psoriasis

Keratoderma blennorrhagica (Keratoderma blennorrhagicum)

Localized pustular psoriasis

Napkin psoriasis

Psoriasis vulgaris (Chronic stationary psoriasis, Plaque-like psoriasis)

Psoriatic arthritis

Psoriatic erythroderma (Erythrodermic psoriasis)

Seborrheic-like psoriasis (Sebopsoriasis, Seborrhiasis)

Reactive neutrophilic

Reactive neutrophilic cutaneous conditions constitute a spectrum of disease mediated by neutrophils, and typically associated with underlying diseases, such as inflammatory bowel disease and hematologic malignancy.^[97][98]

 

 

Pyoderma gangrenosum

Acute erythema nodosum

Bowel-associated dermatosis–arthritis syndrome (Bowel bypass syndrome, Bowel bypass syndrome without bowel bypass, Intestinal bypass arthritis–dermatitis syndrome)

Marshall syndrome

Neutrophilic dermatosis of the dorsal hands (Pustular vasculitis of the dorsal hands)

Neutrophilic eccrine hidradenitis

Pyoderma gangrenosum

Pyogenic arthritis–pyoderma gangrenosum–acne syndrome (PAPA syndrome)

Rheumatoid neutrophilic dermatitis (Rheumatoid neutrophilic dermatosis)

Superficial granulomatous pyoderma

Sweet’s syndrome (Acute febrile neutrophilic dermatosis)

Sweet’s syndrome-like dermatosis

Vesicopustular dermatosis

Recalcitrant palmoplantar eruptions

Recalcitrant palmoplantar eruptions are skin conditions of the palms and soles which are resistant to treatment.^[33]

Dermatitis repens (Acrodermatitis continua, Acrodermatitis continua of Hallopeau, Acrodermatitis continua suppurativa Hallopeau, Acrodermatitis perstans, Dermatitis repens Crocker, Hallopeau’s acrodermatitis, Hallopeau’s acrodermatitis continua, Pustular acrodermatitis)

Infantile acropustulosis (Acropustulosis of infancy)

Palmoplantar pustulosis (Persistent palmoplantar pustulosis, Pustular psoriasis of the Barber type, Pustular psoriasis of the extremities, Pustulosis of palms and soles, Pustulosis palmaris et plantaris)

Pustular bacterid

Resulting from errors in metabolism

Skin conditions resulting from errors in metabolism are caused by enzymatic defects that lead to an accumulation or deficiency of various cellular components, including, but not limited to, amino acids, carbohydrates, and lipids.^[16]

Acute intermittent porphyria

Adrenoleukodystrophy (Schilder’s disease)

Alkaptonuria

Aminolevulinic acid dehydratase deficiency porphyria (Doss porphyria, Plumboporphyria)

B-mannosidase deficiency

Carotenosis

Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy syndrome (CADASIL syndrome)

Cerebrotendinous xanthomatosis

Citrullinemia

Congenital erythropoietic porphyria (Gunther’s disease)

Diabetic bulla (Bullosis diabeticorum, Bullous eruption of diabetes mellitus)

Diabetic cheiroarthropathy

Diabetic dermopathy (Shin spots)

Dystrophic calcinosis cutis

Eruptive xanthoma

Erythropoietic protoporphyria

 

 

Erythropoietic protoporphyria

Fabry disease (Anderson–Fabry disease, Angiokeratoma corporis diffusum)

Familial alpha-lipoprotein deficiency (Tangier disease)

Familial amyloid polyneuropathy

Familial apoprotein CII deficiency

Familial combined hyperlipidemia (Multiple-type hyperlipoproteinemia)

Familial defective apolipoprotein B-100

Familial dysbetalipoproteinemia (Broad beta disease, Remnant removal disease)

Familial hypertriglyceridemia

Farber disease (Fibrocytic dysmucopolysaccharidosis, Lipogranulomatosis)

Fucosidosis

Gaucher’s disease

Gout (Podagra, Urate crystal arthropathy, Urate deposition disease)

Hartnup disease (Pellagra-like dermatosis)

Hemodialysis-associated amyloidosis

Hepatoerythropoietic porphyria

Hereditary coproporphyria

Hereditary gelsolin amyloidosis

Heredofamilial amyloidosis

Hunter syndrome

Hurler syndrome (Gargoylism, Mucopolysaccharidosis type I)

Hurler–Scheie syndrome (Mucopolysaccharidosis type I H-S)

Hyaluronidase deficiency (Mucopolysaccharidosis type IX)

Iatrogenic calcinosis cutis

Idiopathic scrotal calcinosis (Idiopathic calcified nodules of the scrotum)

Lafora disease

Lesch–Nyhan syndrome (Juvenile gout)

Lichen amyloidosis

Limited joint mobility

Lipoid proteinosis (Hyalinosis cutis et mucosae, Urbach–Wiethe disease)

Lipoprotein lipase deficiency (Chylomicronemia, Chylomicronemia syndrome)

Macular amyloidosis

 

 

Xanthoma tendinosum

Maroteaux–Lamy syndrome (Mucopolysaccharidosis type VI)

Medication-induced hyperlipoproteinemia

Metastatic calcinosis cutis

Milia-like calcinosis

Morquio’s disease (Mucopolysaccharidosis type IV)

Necrobiosis lipoidica (Necrobiosis lipoidica diabeticorum)

Niemann–Pick disease

Nodular amyloidosis

Nodular xanthoma

Normolipoproteinemic xanthomatosis

Obstructive liver disease (Xanthomatous biliary cirrhosis)

Ochronosis

Osteoma cutis

Palmar xanthoma

Phenylketonuria

Phytosterolemia (Sitosterolemia)

Porphyria cutanea tarda

Primary cutaneous amyloidosis

Primary systemic amyloidosis

Prolidase deficiency

Pseudoporphyria (Pseudoporphyria cutanea tarda)

Sanfilippo syndrome

Scheie syndrome (Mucopolysaccharidosis type I S)

Secondary cutaneous amyloidosis

Secondary systemic amyloidosis

Sialidosis

Sly syndrome (Mucopolysaccharidosis type VII)

Subepidermal calcified nodule (Solitary congenital nodular calcification, Winer’s nodular calcinosis)

Transient erythroporphyria of infancy (Purpuric phototherapy-induced eruption)

 

 

Xanthelasma palpebrarum

Traumatic calcinosis cutis

Tuberoeruptive xanthoma (Tuberous xanthoma)

Tumoral calcinosis

Variegate porphyria (Mixed hepatic porphyria, Mixed porphyria, South African genetic porphyria, South African porphyria)

Verruciform xanthoma

Waxy skin

Wilson’s disease (Hepatolenticular degeneration)

Xanthelasma palpebrarum (Xanthelasma)

Xanthoma diabeticorum

Xanthoma planum (Plane xanthoma)

Xanthoma striatum palmare

Xanthoma tendinosum (Tendinous xanthoma)

Xanthoma tuberosum

Resulting from physical factors

Skin conditions resulting from physical factors occur due to a number of causes, including, but not limited to, hot and cold temperatures, friction, and moisture.^{[33][99][100]}

Abrasion

Acrocyanosis

Actinic prurigo (Familial polymorphous light eruption of American Indians, Hereditary polymorphous light eruption of American Indians, Hutchinson’s summer prurigo, Hydroa aestivale)

Benign summer light eruption

Beryllium granuloma

Black heel and palm (Black heel, Calcaneal petechiae, Chromidrose plantaire, Post-traumatic punctate intraepidermal hemorrhage, Tache noir, Talon noir)

Callus (Callosity, Clavus, Corn, Heloma, Heloma durum, Heloma molle, Intractable plantar keratosis, Tyloma)

Carbon stain

 

 

Chilblains

Chilblains (Pernio, Perniosis)

Chronic actinic dermatitis (Actinic reticuloid, Chronic photosensitivity dermatitis, Persistent light reactivity, Photosensitive eczema)

Colloid milium

Coma blister

Coral cut

Delayed blister

Dermatosis neglecta

Edema blister (Edema bulla, Hydrostatic bulla, Stasis blister)

Electrical burn

Equestrian perniosis

Erythema ab igne (Fire stains, Toasted skin syndrome)

Erythrocyanosis crurum

Favre–Racouchot syndrome (Favre–Racouchot disease, Nodular cutaneous elastosis with cysts and comedones)

Foreign body reaction

Fracture blister

Friction blister

Frostbite

Garrod’s pad (Violinist’s viola pad)

Harpist’s finger

Heel stick wound

Heat edema

Hot tar burn

Hunan hand syndrome (Chili burn)

Hydroa vacciniforme (Bazin’s hydroa vacciniforme)

Jogger’s nipple

Juvenile spring eruption

Kairo cancer

Kang cancer

Kangri ulcer

Lightning burn

Loop mark

Magnetic resonance imaging burn (MRI burn)

Mercury granuloma

Miliaria crystallina (Miliaria crystalline, Sudamina)

Miliaria profunda (Mammillaria)

Miliaria pustulosa

Miliaria rubra (Heat rash, Prickly heat)

Narcotic dermopathy

Occlusion miliaria

Painful fat herniation (Painful piezogenic pedal papules, Piezogenic papules)

Peat fire cancer

Photoaging (Dermatoheliosis)

Photosensitivity with HIV infection

Phototoxic tar dermatitis

Phytophotodermatitis (Berloque dermatitis)

Pinch mark

Polymorphous light eruption (Polymorphic light eruption)

Postmiliarial hypohidrosis

 

 

Pressure ulcer

Postoperative hematoma

Pressure ulcer (Decubitus ulcer)

Pseudoacanthosis nigricans

Pseudoverrucous papules and nodules

Pulling boat hands

PUVA-induced acrobullous dermatosis

Runner’s rump

Sclerosing lymphangiitis

Silica granuloma

Silicone granuloma

Skin pop scar

Skin track

Slap mark

Solar erythema

Soot tattoo

Subcutaneous emphysema

Sucking blister

Sunburn

Surfer’s knots

Tattoo

Tennis toe

Thermal burn

Traumatic asphyxia

Trench foot

Tropical anhidrotic asthenia

Tropical immersion foot (Paddy foot, Paddy-field foot)

Turf toe

Uranium dermatosis

UV-sensitive syndrome

Vibration white finger (Dead finger, Hand–arm vibration syndrome)

Warm water immersion foot

Weathering nodule of ear

Wrestler’s ear (Cauliflower ear, Traumatic auricular hematoma)

Zirconium granuloma

Ionizing radiation-induced

Ionizing radiation-induced cutaneous conditions result from exposure to ionizing radiation.

Acute radiodermatitis

Chronic radiation keratosis

Chronic radiodermatitis

Eosinophilic, polymorphic, and pruritic eruption associated with radiotherapy

Fluoroscopy burn

Radiation acne

Radiation cancer

Radiation dermatitis (Radiodermatitis)

Radiation recall reaction

Radiation-induced erythema multiforme

Radiation-induced hypertrophic scar

Radiation-induced keloid

Radiation-induced morphea

Urticaria and angioedema

 

Urticaria is a vascular reaction of the skin characterized by the appearance of wheals, which are firm, elevated swelling of the skin.^[102] Angioedema, which can occur alone or with urticaria, is characterized by a well-defined, edematous swelling that involves subcutaneous tissues, abdominal organs, and/or upper airway.^[103]

 

 

Acute urticaria

Acquired C1 esterase inhibitor deficiency

Acute urticaria

Adrenergic urticaria

Anaphylaxis

Aquagenic urticaria

Cholinergic urticaria

Chronic urticaria (Ordinary urticaria)

Cold urticaria

Dermatographism (Dermographism)

Episodic angioedema with eosinophilia (Gleich syndrome)

Exercise urticaria (Exercise-induced urticaria)

Galvanic urticaria

Heat urticaria

Hereditary angioedema (Quincke edema)

Localized heat contact urticaria

Mast cell-independent urticaria

Physical urticaria

Primary cold contact urticaria

Pressure urticaria (Delayed pressure urticaria)

Reflex cold urticaria

Schnitzler syndrome

Secondary cold contact urticaria

Solar urticaria

Systemic capillary leak syndrome

Urticarial allergic eruption

Urticaria-like follicular mucinosis

Vibratory angioedema

Vascular-related

Vascular-related cutaneous conditions result from dysfunction of the blood and/or blood vessels in the dermis, or lymphatics in the subcutaneous tissues.^{[9][104][105]}

Aagenaes syndrome

Acroangiodermatitis (Acroangiodermatitis of Mali, Mali acroangiodermatitis, Pseudo-Kaposi’s sarcoma)

Acute hemorrhagic edema of infancy (Acute hemorrhagic edema of childhood, Finkelstein’s disease, Infantile postinfectious iris-like purpura and edema, Medallion-like purpura, Purpura en cocarde avec oedema, Seidlmayer syndrome)

Arterial insufficiency ulcer (Ischemic ulcer)

Arteriosclerosis obliterans

Bier spots

Blueberry muffin baby

Bonnet–Dechaume–Blanc syndrome (Wyburn–Mason syndrome)

Bullous lymphedema

Bullous small vessel vasculitis (Bullous variant of small vessel vasculitis)

Calciphylaxis

 

 

Calciphylaxis

Cholesterol embolus (Warfarin blue toe syndrome)

Cobb syndrome

Cryofibrinogenemic purpura

Cryoglobulinemic purpura

Cryoglobulinemic vasculitis

Cutaneous small-vessel vasculitis (Cutaneous leukocytoclastic angiitis, Cutaneous leukocytoclastic vasculitis, Cutaneous necrotizing venulitis, Hypersensitivity angiitis)

Deep venous thrombosis

Disseminated intravascular coagulation

Doucas and Kapetanakis pigmented purpura

Drug-induced purpura

Drug-induced thrombocytopenic purpura

Eczematid-like purpura of Doucas and Kapetanakis

Epidemic dropsy

Erythema elevatum diutinum

Erythromelalgia (Acromelalgia, Erythermalgia)

Factitial lymphedema (Hysterical edema)

Fibrinolysis syndrome (Defibrinating syndrome, Hypofibrinogenemia)

Food-induced purpura

Generalized essential telangiectasia (General essential telangiectasia)

Giant-cell arteritis

Gougerot–Blum syndrome (Pigmented purpuric lichenoid dermatitis, Pigmented purpuric lichenoid dermatitis of Gougerot and Blum)

Hematopoietic ulcer

Hennekam syndrome (Hennekam lymphangiectasia-lymphedema syndrome, Intestinal lymphagiectasia-lymphedema-mental retardation syndrome)

Henoch–Schönlein purpura (Anaphylactoid purpura, Purpura rheumatica, Schönlein–Henoch purpura)

 

 

Henoch–Schönlein purpura

Hereditary hemorrhagic telangiectasia (Osler’s disease, Osler–Weber–Rendu disease)

Idiopathic thrombocytopenic purpura (Autoimmune thrombocytopenic purpura, Werlhof’s disease)

IgA vasculitis

Kawasaki’s disease (Mucocutaneous lymph node syndrome)

Lichen aureus (Lichen purpuricus)

Livedo racemosa

Livedo reticularis

Livedoid dermatitis (Embolia cutis medicamentosa, Nicolau syndrome)

Livedoid vasculopathy (Atrophie blanche, Livedo reticularis with summer ulceration, Livedoid vasculitis, PURPLE syndrome, Segmental hyalinizing vasculitis)

Lymphedema praecox

Lymphedema–distichiasis syndrome

Maffucci syndrome

Majocchi’s disease (Purpura annularis telangiectodes, Purpura annularis telangiectodes of Majocchi)

Malignant atrophic papulosis (Degos’ disease)

Marshall–White syndrome

Meige lymphedema

Microscopic polyangiitis (Microscopic polyarteritis, Microscopic polyarteritis nodosa)

Mondor’s disease (Mondor’s syndrome of superficial thrombophlebitis)

Neuropathic ulcer (Mal perforans)

Njolstad syndrome

Nonne–Milroy–Meige syndrome (Hereditary lymphedema, Milroy disease)

Obstructive purpura

Orthostatic purpura (Stasis purpura)

Painful bruising syndrome (Autoerythrocyte sensitization, Gardner–Diamond syndrome, Psychogenic purpura)

Parkes Weber syndrome

Paroxysmal hand hematoma (Achenbach syndrome)

Paroxysmal nocturnal hemoglobinuria

Polyarteritis nodosa (Panarteritis nodosa, Periarteritis nodosa)

Postcardiotomy syndrome

Perinatal gangrene of the buttock

Pigmentary purpuric eruptions (Progressive pigmentary dermatosis, Progressive pigmenting purpura, Purpura pigmentosa chronica)

Postinflammatory lymphedema

Postmastectomy lymphangiosarcoma (Stewart–Treves syndrome)

Purpura fulminans (Purpura gangrenosa)

Purpura secondary to clotting disorders

Purpuric agave dermatitis

 

 

Raynaud phenomenon

Raynaud phenomenon

Raynaud’s disease (Primary Raynaud’s phenomenon)

Reactive angioendotheliomatosis

Schamberg’s disease (Progressive pigmentary dermatosis of Schamberg, Purpura pigmentosa progressiva, Schamberg’s purpura)

Secondary lymphedema

Septic thrombophlebitis

Sinusoidal hemangioma

Sneddon’s syndrome (Idiopathic livedo reticularis with cerebrovascular accidents)

Solar purpura (Actinic purpura, Senile purpura)

Stasis dermatitis (Congestion eczema, Gravitational dermatitis, Gravitational eczema, Stasis eczema, Varicose eczema)

Superficial thrombophlebitis

Takayasu arteritis (Aortic arch syndrome, Pulseless disease)

Temporal arteritis (Cranial arteritis, Horton’s disease)

Thromboangiitis obliterans (Buerger’s disease)

Thrombotic thrombocytopenic purpura (Moschcowitz syndrome)

Traumatic purpura

Trousseau’s syndrome

Unilateral nevoid telangiectasia (Nevoid telangiectasia)

Urticarial vasculitis (Chronic urticaria as a manifestation of venulitis, Hypocomplementemic urticarial vasculitis syndrome, Hypocomplementemic vasculitis, Unusual lupus-like syndrome)

Venous insufficiency ulceration

Waldenström hyperglobulinemic purpura (Purpura hyperglobulinemica)

Waldenström macroglobulinemia

Wegener granulomatosis

Yellow nail syndrome (Primary lymphedema associated with yellow nails and pleural effusion)