4 results
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
• Most common cause ... pneumonia • Chronic ... ) • CXR upright ... seen • Chest CT ... Prevotella • Fungal
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Pseudomonas FUNGAL ... • CT: Halo sign ... Abdominal pain, chronic ... factor • May cause ... #AIDS #pulmonary
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
lung disease ... status NTM Cause ... Advanced HIV (CD4 ... Imaging, high res CT ... differential #diagnosis #infectiousdiseases
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
presents with acute ... yeast • At risk: AIDS ... change in the lungs ... nails, bronchi, lungs ... ) #Mycoses #InfectiousDiseases