23 results
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
- Differential Diagnosis ... Framework Disease ... angioinvasive disease ... • CT: Halo sign ... #AIDS #pulmonary
Radiographic appearances of pulmonary diseases in HIV/AIDS Patients
 • Diffuse Interstitial Infiltrates: Pneumocystis jirovecii, M.tuberculosis, Histoplasma
diseases in HIV ... /AIDS Patients ... disease, Pulmonary ... #diagnosis #chestCT ... #radiology
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 ... Organizing Pneumonia ... Patterns #Lung #Pulmonary ... #ChestCT #radiology ... #CTChest #diagnosis
AIDS-defining illnesses
 - Candidiasis of the esophagus, bronchi, trachea, or lungs [(but NOT the mouth (thrush)]
AIDS-defining illnesses ... Cytomegalovirus disease ... (other than liver ... tuberculosis, any site (pulmonary ... InfectiousDiseases #Diagnosis
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
Pulmonary Infections ... in HIV-AIDS Bacterial ... CXR +/- High res CT ... Infectious Diseases ... HIVAIDS #workup #diagnosis
Based on the images alone, it is usually not possible to determine the cause of the
determine the cause ... Lobar pneumonia ... interstitial lung disease ... #Clinical #Diagnosis ... #Radiology #CXR
Bilateral B-Lines in case of Pneumonia on Lung POCUS

Young healthy pt with fever/dyspnea. POCUS lung exam
healthy pt with fever ... /lung sliding: Pulmonary ... lung disease, interstitial ... NOT definitively diagnose ... POCUS #clinical #ultrasound
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
• Most common cause ... decubitus - air fluid level ... seen • Chest CT ... Lung #Abscess #pulmonary ... #differential #causes
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
Liver diseases ... Chest CT: • Ground-glass ... community-acquired infections: Pneumonia ... Low serum IgG level ... DDX - Other causes
Imaging Modalities for Renal Calculus

AXR. KUB
 - Good far calcium-containing stones useful when limited radiation dose
radiation dose Ultrasound ... retroperitoneal disease ... diverticulae). degree and level ... for non-calculus causes ... stones #calculus #Radiology