11 results
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
Pulmonary Infections ... in HIV-AIDS Bacterial ... failure, COPD, Lung ... +/- High res CT ... #workup #diagnosis
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
Findings on Chest CT ... ARDS 3. ... #Pulmonary #ChestCT ... #radiology #CTChest ... #diagnosis
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
throughout the lungs ... Differential Diagnosis ... Opacities: • Infectious ... #pulmonary #CXR ... #clinical #CT
Diffuse consolidation
The most common cause of diffuse consolidation is pulmonary edema due to heart failure.
This is
consolidation is pulmonary ... Look for other signs ... infection, ARDS ... #Diagnosis #Radiology ... #Pulmonary #CXR
Hampton hump is a radiologic sign which consists of a shallow wedge-shaped opacity in the periphery
is a radiologic sign ... periphery of the lung ... hump along may aid ... in the diagnosis ... confirmed with chest CT
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... - Differential Diagnosis ... • CT: Halo sign ... #Infections #HIV ... #AIDS #pulmonary
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Nasal polyps and signs ... in the adjacent lung ... of the affected lung ... parenchyma Diagnosis ... high-resolution chest CT
Crazy Paving on Chest CT
 • Thickened interlobular septa in a background of diffuse GGO's.
 •
Paving on Chest CT ... pna, pulm hge, ARDS ... Crazy #Paving #Sign ... #CT #Lung #Pulmonary ... #diagnosis #radiology
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
symptoms • Rheumatologic ... muscle aches, joint ... yeast • At risk: AIDS ... change in the lungs ... nails, bronchi, lungs
Summary of Oncologic Emergencies

Neutropenic fever:
- Fever + ANC < 500 → start cefepime ± vancomycin (if
if SSTI or port infection ... suspected) - CT ... chest; CT abdomen ... renal failure, pulmonary ... Oncology #HemeOnc #Diagnosis