9 results
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
Rash is usually ... chronicum migrans • Rash ... Fever + facial rash ... • Evanescent rash ... Acute systemic rash
Christmas Tree Rash of Pityriasis rosea
 - small oval scaling patches
 - Christmas tree pattern
 -
Christmas Tree Rash ... parallel to lines of skin ... ChristmasTree #Rash ... #dermatology #photo ... #PhysicalExam
Palpable Purpura seen in Henoch Schonlein Purpura (HSP, IgA Vasculitis)

55 year old male on tuberculosis treatment
Schonlein Purpura (HSP ... ankles and palpable rash ... Vasculitis #clinical #photo ... #dermatology #skin ... #rash #physicalexam
Erythema Ab Igne on Physical Exam

Erythema ab igne (EAI) is a skin reaction caused by chronic
igne (EAI) is a skin ... #Igne #AbIgne #PhysicalExam ... #clinical #video ... #skin #dermatology ... #rash
Moccasin-variety Tinea Pedis 
70 M chronic scaly feet. Over the years: rash has itched only occasionally;
Over the years: rash ... Moccasin tinea pedis skin ... hyperkeratotic w/ erythema ... demarcation line of erythema ... type #clinical #photo
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
honey-colored crusts • Herpes ... crusted erosions • Herpes ... #dermatology #rash ... #differential # ... diagnosis #skin
Henoch Schonlein Leg Rash - Palpable Purpura
Purpura: Low Platelets or Vasculitis?
45 years old, seen in our
Schonlein Leg Rash ... Tip: To differentiate ... Purpura #Legs #Rash ... #clinical #photo ... #dermatology #HSP
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
Herpesviruses (MCC: HSV ... 1): • Herpes ... Maculopapular rash ... 10 weeks after erythema ... • Uveitis • Rash
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... Vasculitis Differential ... of shoulder and hip ... muscle weakness • Nerves ... , mucositis • Rash