13 results
Erythema Ab Igne on Physical Exam

Erythema ab igne (EAI) is a skin reaction caused by chronic
Erythema Ab Igne ... caused by chronic ... #PhysicalExam # ... #skin #dermatology ... #rash
Christmas Tree Rash of Pityriasis rosea
 - small oval scaling patches
 - Christmas tree pattern
 -
parallel to lines of skin ... nummular eczema, tinea ... Pityriasis #rosea #clinical ... #dermatology #photo ... #PhysicalExam
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
Erythema ab igne ... or trunk most commonly ... • Most commonly ... include: infections (HSV ... differential #diagnosis #dermatology
Moccasin-variety Tinea Pedis 
70 M chronic scaly feet. Over the years: rash has itched only occasionally;
Over the years: rash ... dermatophytes cause ... rubrum is most commonly ... skin of inflamed ... #photo #foot #dermatology
Erythema Annulare Centrifugum (EAC),
This is erythema annulare centrifugum (EAC), one of the “figurate erythemas.” These lesions
Commonly mistaken ... for tinea. ... Most cases are idiopathic ... Centrifugum #EAC #clinical ... #photo #dermatology
Palpable Purpura seen in Henoch Schonlein Purpura (HSP, IgA Vasculitis)

55 year old male on tuberculosis treatment
Schonlein Purpura (HSP ... Henoch #Schonlein #HSP ... IgA #Vasculitis #clinical ... #photo #dermatology ... #skin #rash #physicalexam
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
Common Dermatological ... with site, (e.g„ tinea ... ; pruritis #dermatology ... #rash #differential ... #common #distribution
Secondary Syphilis Rash
Secondary syphilis is the most contagious of all the stages of this disease, and
Skin rash and malaise ... commonly characterize ... resembling rashes caused ... #Diagnosis #Clinical ... #Photo #Dermatology
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
: HSV 1): • Herpes ... Maculopapular rash ... • Common clinical ... meningismus are common ... • Uveitis • Rash
Illustrative example of a patient with acrodermatitis chronica atrophicans. 

Acrodermatitis chronica atrophicans is a late skin
atrophicans is a late skin ... of a preceding erythema ... by far the most common ... #Clinical #Dermatology ... #Rash #LymeDisease