sclerosus et atrophicus overlap generalized morphea atrophoderma of pasini and pierini pansclerotic morphea morphea profunda linear scleroderma atrophic/atrophoderma lichen sclerosus anetoderma schweninger–buzzi anetoderma jadassohn–pellizzari anetoderma atrophoderma of pasini and pierini acrodermatitis chronica atrophicans semicircular lipoatrophy follicular atrophoderma linear atrophoderma of moulin perforating kyrle disease reactive perforating collagenosis elastosis perforans serpiginosa perforating folliculitis acquired perforating dermatosis skin ulcer pyoderma gangrenosum other calcinosis cutis sclerodactyly poikiloderma vasculare atrophicans ainhum/pseudo-ainhum mucinosis/lichen myxedematosuslocalized lichen myxedematosus discrete papular lichen myxedematosus acral persistent papular mucinosis self-healing papular mucinosis/self-healing juvenile cutaneous mucinosis papular mucinosis of infancy atypical lichen myxedematosus atypical tuberous myxedema nodular lichen myxedematosus other primary mucinoses cutaneous focal mucinosis cutaneous lupus mucinosis eccrine mucinosis alopecia mucinosa perifollicular mucinosis stiff skin syndrome generalized lichen myxedematosus secondary mucinoses basal-cell carcinoma granuloma annulare disorders of skin appendagesnail thickness: onychogryphosis onychauxis color: beau's lines yellow nail syndrome leukonychia azure lunula shape: koilonychia nail clubbing behavior: onychotillomania onychophagia other: ingrown nail anonychia ungrouped: paronychia acute chronic chevron nail congenital onychodysplasia of the index fingers green nails half and half nails hangnail hapalonychia hook nail ingrown nail lichen planus of the nails longitudinal erythronychia malalignment of the nail plate median nail dystrophy mees' lines melanonychia muehrcke's lines nail–patella syndrome onychoatrophy onycholysis onychomadesis onychomatricoma onychomycosis onychophosis onychoptosis defluvium onychorrhexis onychoschizia platonychia pincer nails plummer's nail psoriatic nails pterygium inversum unguis pterygium unguis purpura of the nail bed racquet nail red lunulae shell nail syndrome splinter hemorrhage spotted lunulae staining of the nail plate stippled nails subungual hematoma terry's nails twenty-nail dystrophy hairhair loss/baldness noncicatricial alopecia: alopecia areata totalis universalis ophiasis androgenic alopecia (male-pattern baldness) hypotrichosis telogen effluvium traction alopecia lichen planopilaris trichorrhexis nodosa alopecia neoplastica anagen effluvium alopecia mucinosa cicatricial alopecia: pseudopelade of brocq central centrifugal cicatricial alopecia pressure alopecia traumatic alopecia tumor alopecia hot comb alopecia perifolliculitis capitis abscedens et suffodiens graham-little syndrome folliculitis decalvans ungrouped: triangular alopecia frontal fibrosing alopecia marie unna hereditary hypotrichosis hypertrichosis hirsutism acquired localised generalised patterned congenital generalised localised x-linked prepubertal acneiformeruptionacne acne vulgaris acne conglobata acne miliaris necrotica tropical acne infantile acne/neonatal acne excoriated acne acne fulminans acne medicamentosa (e.g., steroid acne) halogen acne iododerma bromoderma chloracne oil acne tar acne acne cosmetica occupational acne acne aestivalis acne keloidalis nuchae acne mechanica acne with facial edema pomade acne acne necrotica blackhead lupus miliaris disseminatus faciei rosacea perioral dermatitis granulomatous perioral dermatitis phymatous rosacea rhinophyma blepharophyma gnathophyma metophyma otophyma papulopustular rosacea lupoid rosacea erythrotelangiectatic rosacea glandular rosacea gram-negative rosacea steroid rosacea ocular rosacea persistent edema of rosacea rosacea conglobata variants periorificial dermatitis pyoderma faciale ungrouped granulomatous facial dermatitis idiopathic facial aseptic granuloma periorbital dermatitis sapho syndrome follicular cysts "sebaceous cyst" epidermoid cyst trichilemmal cyst steatocystoma simplex multiplex milia inflammation folliculitis folliculitis nares perforans tufted folliculitis pseudofolliculitis barbae hidradenitis hidradenitis suppurativa recurrent palmoplantar hidradenitis neutrophilic eccrine hidradenitis ungrouped acrokeratosis paraneoplastica of bazex acroosteolysis bubble hair deformity disseminate and recurrent infundibulofolliculitis erosive pustular dermatitis of the scalp erythromelanosis follicularis faciei et colli hair casts hair follicle nevus intermittent hair–follicle dystrophy keratosis pilaris atropicans kinking hair koenen's tumor lichen planopilaris lichen spinulosus loose anagen syndrome menkes kinky hair syndrome monilethrix parakeratosis pustulosa pili (pili annulati pili bifurcati pili multigemini pili pseudoannulati pili torti) pityriasis amiantacea plica neuropathica poliosis rubinstein–taybi syndrome setleis syndrome traumatic anserine folliculosis trichomegaly trichomycosis axillaris trichorrhexis (trichorrhexis invaginata trichorrhexis nodosa) trichostasis spinulosa uncombable hair syndrome wooly hair nevus sweatglandseccrine miliaria colloid milium miliaria crystalline miliaria profunda miliaria pustulosa miliaria rubra occlusion miliaria postmiliarial hypohidrosis granulosis rubra nasi ross’ syndrome anhidrosis hyperhidrosis generalized gustatory palmoplantar apocrine body odor chromhidrosis fox–fordyce disease sebaceous sebaceous hyperplasia pigmentation disorders/dyschromiahypo-/leucismloss ofmelanocytesvitiligo quadrichrome vitiligo vitiligo ponctué syndromic alezzandrini syndrome vogt–koyanagi–harada syndrome melanocytedevelopment piebaldism waardenburg syndrome tietz syndrome loss of melanin/amelanismalbinism oculocutaneous albinism ocular albinism melanosometransfer hermansky–pudlak syndrome chédiak–higashi syndrome griscelli syndrome elejalde syndrome griscelli syndrome type 2 griscelli syndrome type 3 other cross syndrome abcd syndrome albinism–deafness syndrome idiopathic guttate hypomelanosis phylloid hypomelanosis progressive macular hypomelanosis leukoderma w/ohypomelanosis vasospastic macule woronoff's ring nevus anemicus ungrouped nevus depigmentosus postinflammatory hypopigmentation pityriasis alba vagabond's leukomelanoderma yemenite deaf-blind hypopigmentation syndrome wende–bauckus syndrome hyper-melanin/melanosis/melanismreticulated dermatopathia pigmentosa reticularis pigmentatio reticularis faciei et colli reticulate acropigmentation of kitamura reticular pigmented anomaly of the flexures naegeli–franceschetti–jadassohn syndrome dyskeratosis congenita x-linked reticulate pigmentary disorder galli–galli disease revesz syndrome diffuse/circumscribed lentigo/lentiginosis: lentigo simplex liver spot centrofacial lentiginosis generalized lentiginosis inherited patterned lentiginosis in black persons ink spot lentigo lentigo maligna mucosal lentigines partial unilateral lentiginosis puva lentigines melasma erythema dyschromicum perstans lichen planus pigmentosus café au lait spot poikiloderma (poikiloderma of civatte poikiloderma vasculare atrophicans) riehl melanosis linear incontinentia pigmenti scratch dermatitis shiitake mushroom dermatitis other/ungrouped acanthosis nigricans freckle familial progressive hyperpigmentation pallister–killian syndrome periorbital hyperpigmentation photoleukomelanodermatitis of kobori postinflammatory hyperpigmentation transient neonatal pustular melanosis otherpigmentsiron hemochromatosis iron metallic discoloration pigmented purpuric dermatosis schamberg disease majocchi's disease gougerot–blum syndrome doucas and kapetanakis pigmented purpura/eczematid-like purpura of doucas and kapetanakis lichen aureus angioma serpiginosum hemosiderin hyperpigmentation othermetals argyria chrysiasis arsenic poisoning lead poisoning titanium metallic discoloration other carotenosis tar melanosis dyschromia dyschromatosis symmetrica hereditaria dyschromatosis universalis hereditaria