8 results
Erythema Annulare Centrifugum (EAC),
This is erythema annulare centrifugum (EAC), one of the “figurate erythemas.” These lesions
classic trailing scale ... Commonly mistaken for tinea ... Classically has a rim of scale ... #clinical #photo ... #dermatology #skinrash
Eczematous Skin Rash - Differential Diagnosis Algorithm
Eczematous - Pruritic/Scaly/Erythematous lesions. Usually poorly demarcated
 • Atopic Dermatitis
Eczematous Skin Rash ... - Differential ... Eczematous - Pruritic/Scaly ... Well-demarcated erythema ... #Eczematous #SkinRash
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
honey-colored crusts ... • Tinea versicolor ... with site, (e.g„ tinea ... #dermatology #rash ... #differential #
Vesiculobullous Skin Rash - Differential Diagnosis Algorithm
Vesicles Fragile/EasiIy Ruptured - Intraepidermal blisters, possibly crusts/erosions
 - Inflammatory
Vesiculobullous Skin Rash ... - Differential ... blisters, possibly crusts ... Bullous systemic lupus ... Vesiculobullous #SkinRash
Moccasin-variety Tinea Pedis 
70 M chronic scaly feet. Over the years: rash has itched only occasionally;
Over the years: rash ... hyperkeratotic w/ erythema ... demarcation line of erythema ... allergic eczematous dermatitis ... type #clinical #photo
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Allopecia - Differential ... cellulitis of the scalp ... Folliculitis decalvans, Tinea ... Disease: Discoid lupus ... , erosions, or erythema
Pustular Skin Rash - Differential Diagnosis Algorithm
Pruritic / Scaly / Erythematous lesions, usually poorly demarcated
Acneiform -
Pustular Skin Rash ... Algorithm Pruritic / Scaly ... drinks • Perioral Dermatitis ... thick honey-yellow crusts ... #Pustular #SkinRash
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
Papulosquamous Skin Rash ... - Differential ... Herald's atch • Tinea ... soles • Discoid Lupus ... Papulosquamous #SkinRash