Differential Diagnosis
DDx Strength: Weak
Helical rim of ear, Multiple skin lesions Add or remove findings

Differential too broad. Edit Findings to refine your results.

Actinic keratosis

Actinic keratosisActinic keratosis

Gout

GoutGout

Weathering nodules of ear

Weathering nodules of ear

Arthropod bite or sting

Arthropod bite or stingArthropod bite or sting

Common wart

Common wartCommon wart

Seborrheic keratosis

Seborrheic keratosisSeborrheic keratosis

Polymorphous light eruption

Polymorphous light eruptionPolymorphous light eruption

Cocaine levamisole toxicity

Cocaine levamisole toxicityCocaine levamisole toxicity

Angiolymphoid hyperplasia with eosinophilia

Angiolymphoid hyperplasia with eosinophiliaAngiolymphoid hyperplasia with eosinophilia

Cryoglobulinemia

CryoglobulinemiaCryoglobulinemia

Relapsing polychondritis

Relapsing polychondritisRelapsing polychondritis

Keratoacanthoma

KeratoacanthomaKeratoacanthoma

Non-bullous impetigo

Non-bullous impetigoNon-bullous impetigo

Chondrodermatitis nodularis helicis

Chondrodermatitis nodularis helicisChondrodermatitis nodularis helicis

Cutaneous squamous cell carcinoma

Cutaneous squamous cell carcinomaCutaneous squamous cell carcinoma

Nodular basal cell carcinoma

Nodular basal cell carcinomaNodular basal cell carcinoma

Black dermographism

Black dermographism

Drug-induced phototoxic reaction

Drug-induced phototoxic reactionDrug-induced phototoxic reaction

Physical urticaria

Physical urticaria

Skin abscess

Skin abscessSkin abscess

Chilblains

ChilblainsChilblains

Cold urticaria

Cold urticariaCold urticaria

Frostbite

FrostbiteFrostbite

Papular mucinosis

Papular mucinosisPapular mucinosis

Porphyria cutanea tarda

Porphyria cutanea tardaPorphyria cutanea tarda

Acrokeratosis paraneoplastica

Acrokeratosis paraneoplasticaAcrokeratosis paraneoplastica

Hemangioendothelioma

Hemangioendothelioma

Lobomycosis

LobomycosisLobomycosis

Trichodysplasia spinulosa

Trichodysplasia spinulosa

Congenital erythropoietic porphyria

Congenital erythropoietic porphyriaCongenital erythropoietic porphyria

Café au lait spot

Café au lait spotCafé au lait spot

Raynaud phenomenon

Raynaud phenomenonRaynaud phenomenon

Rheumatoid nodule

Rheumatoid noduleRheumatoid nodule

Spitz nevus

Spitz nevusSpitz nevus

Tinea faciei

Tinea facieiTinea faciei

Common acquired nevus

Common acquired nevusCommon acquired nevus

Infiltrating basal cell carcinoma

Infiltrating basal cell carcinomaInfiltrating basal cell carcinoma

Keloid

KeloidKeloid

Lentigo maligna

Lentigo malignaLentigo maligna

Squamous cell carcinoma in situ

Squamous cell carcinoma in situSquamous cell carcinoma in situ

Superficial basal cell carcinoma

Superficial basal cell carcinomaSuperficial basal cell carcinoma

Acute generalized exanthematous pustulosis

Acute generalized exanthematous pustulosisAcute generalized exanthematous pustulosis

AIDS-associated Kaposi sarcoma

AIDS-associated Kaposi sarcomaAIDS-associated Kaposi sarcoma

Primary cutaneous anaplastic large cell lymphoma

Primary cutaneous anaplastic large cell lymphoma

Perichondritis

PerichondritisPerichondritis

Molluscum contagiosum

Molluscum contagiosumMolluscum contagiosum

Postinflammatory hyperpigmentation

Postinflammatory hyperpigmentationPostinflammatory hyperpigmentation

Telangiectasia

TelangiectasiaTelangiectasia

Urticaria

UrticariaUrticaria

Acne vulgaris

Acne vulgarisAcne vulgaris

Angiokeratoma

Angiokeratoma

Bedbug bite

Bedbug biteBedbug bite

Discoid lupus erythematosus

Discoid lupus erythematosusDiscoid lupus erythematosus

Postinflammatory hypopigmentation

Postinflammatory hypopigmentationPostinflammatory hypopigmentation

Granuloma faciale

Granuloma facialeGranuloma faciale

Atypical nevus

Atypical nevusAtypical nevus

Blue nevus

Blue nevusBlue nevus

Lentigo simplex

Lentigo simplexLentigo simplex

Melanoma

MelanomaMelanoma

Lentigo maligna melanoma

Lentigo maligna melanomaLentigo maligna melanoma