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

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... polymicrobial infection ... Abscess Pathophysiology ... Lung abscess ... Cavitation > 6 cm
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
HIV / AIDS - Differential ... tuberculomas, or abscesses ... Demyelinating disease caused ... - Generally >3 cm ... differential #diagnosis #AIDS
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
yeast • At risk: AIDS ... Aspergillosis Pathophysiology ... • Sinusitis • Brain ... abscess • Disseminated ... change in the lungs