19 results
Christmas Tree Rash of Pityriasis rosea
 - small oval scaling patches
 - Christmas tree pattern
 -
- long axis of lesion ... parallel to lines of skin ... - Differential diagnosis ... nummular eczema, tinea ... #dermatology #photo
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
+ toxo IgG • ... CNS PCR 50% sensitive ... granulomatosis: • EBV-associated ... , may also see skin ... causes #radiology #neurology
Moccasin-variety Tinea Pedis 
70 M chronic scaly feet. Over the years: rash has itched only occasionally;
Over the years: rash ... Diagnosis? ... most commonly associated ... skin of inflamed ... type #clinical #photo
Staphylococcus-associated GlomeruloNephritis - Diagnosis and Management Summary
CLINICAL
 • Nephritic syndrome (Casts)
 • Marked proteinuria (may be
Staphylococcus-associated ... • Vasculitic rash ... • C3/lgG or IgA ... (esp DM) • "starry ... Staphylococcus #associated
Henoch Schonlein Leg Rash - Palpable Purpura
Purpura: Low Platelets or Vasculitis?
45 years old, seen in our
and touch the lesions ... Henoch-Schonlein purpura (IgA ... later confirmed by skin ... #clinical #photo ... #dermatology #HSP
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
Systemic disease associated ... response to local skin ... injury) • Neurologic ... retinal damage) • Skin ... test (this is a skin
Secondary Syphilis Rash
Secondary syphilis is the most contagious of all the stages of this disease, and
Skin rash and malaise ... heaped, wart-like lesions—Condyloma ... Sometimes rashes associated ... #Diagnosis #Clinical ... #Photo #Dermatology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
of shoulder and hip ... , neurologic, and ... , mucositis • Rash ... VASCULITIS: ANCA Associated ... , IgA (cmpkx deposits
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
centrifugum • A chronic skin ... gyratum repens • A skin ... classic targetoid lesions ... include: infections (HSV ... #differential #diagnosis
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
- Differential Diagnosis ... Principles of HIV-Associated ... cells per μL • Diagnosis ... Simplex Virus (HSV ... ; associated intracranial