15 results
Erythema Annulare Centrifugum (EAC),
This is erythema annulare centrifugum (EAC), one of the “figurate erythemas.” These lesions
Erythema Annulare ... Commonly mistaken for tinea ... drugs, systemic disease ... #Erythema #Annulare ... #photo #dermatology
Christmas Tree Rash of Pityriasis rosea
 - small oval scaling patches
 - Christmas tree pattern
 -
Christmas Tree Rash ... parallel to lines of skin ... nummular eczema, tinea ... Pityriasis #rosea #clinical ... #dermatology #photo
Central Distribution, Febrile / Ill:
 - Viral Exanthem 
 - Lyme Disease (erythema migrans) 
Central Distribution,
Exanthem - Lyme Disease ... Syphilis - Lyme Disease ... Macules #Papules #Rash ... #Algorithm #Diagnosis ... #Dermatology #Skin
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
Erythema annulare ... centrifugum • A chronic skin ... early localized disease ... • A chronic skin ... differential #diagnosis #dermatology
Disorders of Pigmentations - Hypopigmentation and Hyperpigmentation - Differential Diagnosis Algorithm

HYPOPIGMENTATION
Diffuse Congenital - Generalized hypopigmentation of
of hair, eyes, skin ... sclerosis (white "ash ... • Addison's disease ... • Melasma • Tinea ... #dermatology #Differential
Moccasin-variety Tinea Pedis 
70 M chronic scaly feet. Over the years: rash has itched only occasionally;
Over the years: rash ... skin of inflamed ... University Infectious Diseases ... Variety #type #clinical ... #photo #foot #dermatology
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
Papulosquamous Skin ... Rash - Differential ... Herald's atch • Tinea ... (Ring Worm) - Annular ... Papulosquamous #SkinRash #dermatology
Secondary Syphilis Rash
Secondary syphilis is the most contagious of all the stages of this disease, and
stages of this disease ... Skin rash and malaise ... late stages of disease ... #Diagnosis #Clinical ... #Photo #Dermatology
Vibrio Vulnificus skin infection
Cirrhosis w/recent consumption of raw oysters w/rapidly evolving rash. 
Vibrio vulnificus part of
Vibrio Vulnificus skin ... chronic liver disease ... #cellulitis #dermatology ... #legs #clinical ... #photo
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
collarette of scale • Tinea ... with site, (e.g„ tinea ... corporis-scaly annular ... ; pruritis #dermatology ... #rash #differential