8 results
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
centrifugum • A chronic skin ... • A chronic skin ... include: infections (HSV ... comparison #table #differential ... #diagnosis #dermatology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
purple, hemorrhagic skin ... Ig A vasculitis/HSP ... reactions • Erythema ... #Diagnosis #hematology ... #rheumatology #
Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS)
Definition: 
 • Severe adverse drug reaction, characterized by
rash in association ... to a coalescing erythema ... Edema in 70% of cases ... Resolution > 15 days Differentials ... DRESS #Syndrome #dermatology
Moccasin-variety Tinea Pedis 
70 M chronic scaly feet. Over the years: rash has itched only occasionally;
Over the years: rash ... dermatophytes cause ... Moccasin tinea pedis skin ... type #clinical #photo ... #foot #dermatology
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
CNS Infections - ... Herpesviruses (MCC: HSV ... virus 1 and 2 • Varicella-zoster ... Maculopapular rash ... • Uveitis • Rash
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
on sun-damaged skin ... honey-colored crusts ... often painful) • Varicella ... ; pruritis #dermatology ... #rash #differential
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
of shoulder and hip ... , mucositis • Rash ... tract, and often causes ... chorioretinitis, CNS ... #Diagnosis #Rheumatology
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
Autoimmune Myositis - Differential ... ) • Anti-Mi2 (skin ... Symptoms: • Gottron rash ... statins - probably caused ... #differential #