4 results
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
COVID-19 Patterns ... Findings on Chest CT ... Organizing Pneumonia ... #ChestCT #radiology ... #CTChest #diagnosis
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
- Differential Diagnosis ... • CT: Halo sign ... factor • May cause ... #AIDS #pulmonary ... #differential #diagnosis
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
Chest CT: • Ground-glass ... community-acquired infections: Pneumonia ... (specifically immune ... Low serum IgG level ... DDX - Other causes
Immune Reconstitution Inflammatory Syndrome - Overview of IRIS

What Is IRIS?
	• A state of hyperinflammatory response that
Immune Reconstitution ... /AIDS patients ... be present: • AIDS ... -1 RNA level from ... cryptococcomas, cavitating pneumonia