Differential Diagnosis
DDx Strength: Weak
Asymmetric trunk or extremity distribution, Multiple skin lesions Add or remove findings

Deep vein thrombosis

Deep vein thrombosisDeep vein thrombosis

Segmental vitiligo

Segmental vitiligoSegmental vitiligo

Hypomelanosis of Ito

Hypomelanosis of ItoHypomelanosis of Ito

Acquired Blaschko dermatitis

Acquired Blaschko dermatitis

Kasabach-Merritt syndrome

Kasabach-Merritt syndromeKasabach-Merritt syndrome

Cellulitis

CellulitisCellulitis

Herpes simplex virus

Herpes simplex virusHerpes simplex virus

Herpes zoster

Herpes zosterHerpes zoster

Herpetic whitlow

Herpetic whitlowHerpetic whitlow

Erysipelas

ErysipelasErysipelas

Lyme disease

Lyme diseaseLyme disease

Lymphedema

LymphedemaLymphedema

Necrobiosis lipoidica

Necrobiosis lipoidicaNecrobiosis lipoidica

Acute febrile neutrophilic dermatosis

Acute febrile neutrophilic dermatosisAcute febrile neutrophilic dermatosis

Anti-TNF-alpha-induced eruptions

Anti-TNF-alpha-induced eruptions

Smooth muscle hamartoma

Smooth muscle hamartomaSmooth muscle hamartoma

Botryomycosis

BotryomycosisBotryomycosis

IgG4-related disease

IgG4-related disease

Martorell hypertensive leg ulcer

Martorell hypertensive leg ulcer

Mycobacterium marinum infection

Mycobacterium marinum infectionMycobacterium marinum infection

Orf

OrfOrf

Sporotrichosis

SporotrichosisSporotrichosis

Intralymphatic histiocytosis

Intralymphatic histiocytosis

Parkes-Weber syndrome

Parkes-Weber syndrome

Amicrobial pustulosis of the folds

Amicrobial pustulosis of the folds

BAP1 cancer syndrome

BAP1 cancer syndrome

BASCULE syndrome

BASCULE syndrome

Blastic plasmacytoid dendritic cell neoplasm

Blastic plasmacytoid dendritic cell neoplasm

Cutaneous Rosai-Dorfman disease

Cutaneous Rosai-Dorfman disease

Eosinophilic annular erythema

Eosinophilic annular erythema

Erythema papulosa semicircularis recidivans

Erythema papulosa semicircularis recidivans

MIDAS syndrome

MIDAS syndrome

Pityriasis rotunda

Pityriasis rotunda

Subacute nodular migratory panniculitis

Subacute nodular migratory panniculitisSubacute nodular migratory panniculitis

Annular lichenoid dermatitis of youth

Annular lichenoid dermatitis of youth

Cutaneous pheohyphomycosis

Cutaneous pheohyphomycosis

Deficiency of adenosine deaminase type 2

Deficiency of adenosine deaminase type 2

Neutrophilic sebaceous adenitis

Neutrophilic sebaceous adenitis

Diabetic dermopathy

Diabetic dermopathyDiabetic dermopathy

Disseminated herpes zoster

Disseminated herpes zoster

Superficial thrombophlebitis

Superficial thrombophlebitisSuperficial thrombophlebitis

Loiasis

LoiasisLoiasis

Pemphigus herpetiformis

Pemphigus herpetiformis

Lipoma

LipomaLipoma

Xanthoma disseminatum

Xanthoma disseminatumXanthoma disseminatum

Onychotillomania

OnychotillomaniaOnychotillomania

Plexiform neurofibroma

Plexiform neurofibromaPlexiform neurofibroma

Dermatofibrosarcoma protuberans

Dermatofibrosarcoma protuberansDermatofibrosarcoma protuberans

Lymphedema praecox

Lymphedema praecox

Merkel cell carcinoma

Merkel cell carcinomaMerkel cell carcinoma

Pilomatrix carcinoma of skin

Pilomatrix carcinoma of skin