Differential Diagnosis
DDx Strength: Weak
Hallux, Multiple skin lesions Add or remove findings

Gout

GoutGout

Onychogryphosis

OnychogryphosisOnychogryphosis

Onychomycosis

OnychomycosisOnychomycosis

Acrodermatitis continua of Hallopeau

Acrodermatitis continua of Hallopeau

Scopulariopsis

ScopulariopsisScopulariopsis

Retronychia

Retronychia

Subungual exostosis

Subungual exostosisSubungual exostosis

Onycholysis

OnycholysisOnycholysis

Postinflammatory hyperpigmentation

Postinflammatory hyperpigmentationPostinflammatory hyperpigmentation

Onychoschizia

OnychoschiziaOnychoschizia

Periungual wart

Periungual wartPeriungual wart

Scytalidium dermatomycosis

Scytalidium dermatomycosis

Tungiasis

TungiasisTungiasis

Richner-Hanhart syndrome

Richner-Hanhart syndromeRichner-Hanhart syndrome

Postinflammatory hypopigmentation

Postinflammatory hypopigmentationPostinflammatory hypopigmentation

Skin abscess

Skin abscessSkin abscess

Ingrown toenail

Ingrown toenailIngrown toenail

Subungual hematoma

Subungual hematomaSubungual hematoma

Subungual melanoma

Subungual melanoma

Acral lentiginous melanoma

Acral lentiginous melanomaAcral lentiginous melanoma

Beau lines

Beau linesBeau lines

Onychotillomania

OnychotillomaniaOnychotillomania

Pseudomonas nail infection

Pseudomonas nail infectionPseudomonas nail infection

Acquired digital fibrokeratoma

Acquired digital fibrokeratomaAcquired digital fibrokeratoma

Onychopapilloma

Onychopapilloma

Onychorrhexis

Onychorrhexis

Periungual fibroma

Periungual fibromaPeriungual fibroma

Pincer nail deformity

Pincer nail deformityPincer nail deformity

Onychomatricoma

Onychomatricoma

Bacterial paronychia

Bacterial paronychiaBacterial paronychia

Dermatitis of nail folds

Dermatitis of nail foldsDermatitis of nail folds

Leukonychia

LeukonychiaLeukonychia

Longitudinal melanonychia

Longitudinal melanonychiaLongitudinal melanonychia

Longitudinal nail ridging

Longitudinal nail ridgingLongitudinal nail ridging

Nail biting

Nail bitingNail biting

Nail polish damage

Nail polish damageNail polish damage

Squamous cell carcinoma in situ

Squamous cell carcinoma in situSquamous cell carcinoma in situ

Subungual wart

Subungual wartSubungual wart

Drug-induced nail pigment

Drug-induced nail pigmentDrug-induced nail pigment

Erythronychia

Erythronychia

Koilonychia

KoilonychiaKoilonychia

Nail candidiasis

Nail candidiasisNail candidiasis

Nail changes of chronic renal failure

Nail changes of chronic renal failureNail changes of chronic renal failure

Nail pterygium

Nail pterygiumNail pterygium

Photoonycholysis

PhotoonycholysisPhotoonycholysis

Subungual fibroma

Subungual fibromaSubungual fibroma

Congenital anonychia

Congenital anonychiaCongenital anonychia

Congenital onychodysplasia

Congenital onychodysplasiaCongenital onychodysplasia

Half and half nail syndrome

Half and half nail syndromeHalf and half nail syndrome

Median nail dystrophy

Median nail dystrophyMedian nail dystrophy

Proximal subungual onychomycosis

Proximal subungual onychomycosisProximal subungual onychomycosis

Clubbing of nails

Clubbing of nailsClubbing of nails

Congenital micronychia

Congenital micronychiaCongenital micronychia

Pesticide-induced nail changes

Pesticide-induced nail changesPesticide-induced nail changes