13 results
Erythema Annulare Centrifugum (EAC),
This is erythema annulare centrifugum (EAC), one of the “figurate erythemas.” These lesions
Erythema Annulare ... classic trailing scale ... Classically has a rim of scale ... EAC #clinical #photo ... #dermatology #skinrash
Reactive Skin Rash - Differential Diagnosis Algorithm
Reactive erythematous with various morphology
 • Urticaria - Firm /
Reactive Skin Rash ... Differential Diagnosis Algorithm ... lasts <24hrs • Erythema ... #Reactive #SkinRash ... #dermatology #Differential
Heliotrope Rash in Dermatomyositis

Peri-orbital edema and the heliotrope rash that we are all familiar with. Eyelid
Heliotrope Rash ... consists of flat, non scaly ... of “violaceous” erythema ... Dermatomyositis #Dermatology ... #Clinical #Photo
Eczematous Skin Rash - Differential Diagnosis Algorithm
Eczematous - Pruritic/Scaly/Erythematous lesions. Usually poorly demarcated
 • Atopic Dermatitis
Eczematous Skin Rash ... Differential Diagnosis Algorithm ... Eczematous - Pruritic/Scaly ... Well-demarcated erythema ... #Eczematous #SkinRash
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
Papulosquamous Skin Rash ... Differential Diagnosis Algorithm ... Papulosquamous #SkinRash ... #dermatology #Differential ... #Diagnosis #Algorithm
Vesiculobullous Skin Rash - Differential Diagnosis Algorithm
Vesicles Fragile/EasiIy Ruptured - Intraepidermal blisters, possibly crusts/erosions
 - Inflammatory
Vesiculobullous Skin Rash ... Differential Diagnosis Algorithm ... drug eruption #Vesicular ... Vesiculobullous #SkinRash ... #dermatology #Differential
Pustular Skin Rash - Differential Diagnosis Algorithm
Pruritic / Scaly / Erythematous lesions, usually poorly demarcated
Acneiform -
Pustular Skin Rash ... Differential Diagnosis Algorithm ... Pruritic / Scaly ... #Pustular #SkinRash ... #dermatology #Differential
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 ... type #clinical #photo ... #foot #dermatology
Childhood Immunization Schedule: Why we immunize
 • Diphtheria Toxin -> URT inflammation causes pseudomembrane with hardened
with pharyngeal erythema ... with pharyngeal erythema ... & hemorrhagic rash ... causes CNS and hematologic ... & pruritic rash
PALM RASHES 
Common features and patterns:
1.	Color:
o	Red or erythematous: Common in inflammatory or allergic reactions.
o	Purple or purpuric:
or hematologic ... o Scaly or flaky ... Chronic, itchy, scaly ... Psoriasis: Thick, scaly ... #erythema