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
Diagnosis Algorithm ... Eczematous - Pruritic/Scaly ... Well-demarcated erythema ... #Eczematous #SkinRash ... #dermatology #Differential
Vesiculobullous Skin Rash - Differential Diagnosis Algorithm
Vesicles Fragile/EasiIy Ruptured - Intraepidermal blisters, possibly crusts/erosions
 - Inflammatory
Diagnosis Algorithm ... blisters, possibly crusts ... Bullous systemic lupus ... Vesiculobullous #SkinRash ... #dermatology #Differential
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
honey-colored crusts ... • Tinea versicolor ... with site, (e.g„ tinea ... ; pruritis #dermatology ... #rash #differential
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Allopecia - Differential ... cellulitis of the scalp ... Scaling, pustules, crusts ... , erosions, or erythema ... #Diagnosis #dermatology
Pustular Skin Rash - Differential Diagnosis Algorithm
Pruritic / Scaly / Erythematous lesions, usually poorly demarcated
Acneiform -
Pruritic / Scaly ... drinks • Perioral Dermatitis ... thick honey-yellow crusts ... #Pustular #SkinRash ... #dermatology #Differential
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
Diffuse and Focal) Differential ... Diagnosis Algorithm ... Alopecia totalis (all scalp ... HairLoss #Alopecia #dermatology ... #Differential #
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
Diagnosis Algorithm ... Herald's atch • Tinea ... soles • Discoid Lupus ... Papulosquamous #SkinRash ... #dermatology #Differential