6 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
PCR 50% sensitive ... lesions • 80% with lung ... Syphilis • Pyogenic Abscess ... Lesions #Brain #differential ... #diagnosis #causes
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... • Most common cause ... Abscess Diagnosis ... of PCN allergy ... Abscess Differential
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
hemorrhage • CSF PCR ... Toxoplasma gondii PCR ... tuberculomas, or abscesses ... • JC-virus PCR ... Enhancement • PCR
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
lumbar spine • MCC ... equina syndrome (CES ... Diagnosis: • ... Spinal infection/abscess ... #diagnosis #causes
Hyperkalemia - Diagnosis and Management - GrepMed Handbook

S/Sx: Most pts asymptomatic. Weakness, cramping, nausea, paresthesias, palpitations,
Hyperkalemia - Diagnosis ... Antibiotics (Bactrim, PCN ... test (only if no clear ... cause) Management ... Bicarb<22) - avoid NS
Langerhans Cell Histiocytosis (LCH)

Granulomatous Lesions comprising langerin-positive histiocytes and an inflammatory infiltrate can arise in virtually
per million children ... CNS involvement: ... Birbeck granules (EM ... DIAGNOSIS • Imaging ... Histiocytosis #Diagnosis