5 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Toxoplasmosis (CD4 ... - Compatible syndrome ... granulomatosis: • EBV-associated ... Lymphoma (CD4 < ... causes #radiology #neurology
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Differential Diagnosis ... : - ANCA-positive ... anti-ANCA ab, anti-GBM ... ab, ANA, C3, C4 ... #diagnosis #nephrology
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
- Differential Diagnosis ... Demyelinating disease ... effect/Edema • EBV ... • Symptoms: Delirium ... and <25% culture positive
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
Cold Agglutinin Syndrome ... (CAS): - Due ... dehydrogenase • Positive ... hemolysis • C3↓ C4 ... - Mycoplasma, EBV
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
- Differential Diagnosis ... pulmonary and renal ... affects the skin, neurologic ... pain and GN Anti-GBM ... chorioretinitis, CNS