11 results
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
failure, COPD, Lung ... Lymphocytic or lymphoid ... CXR +/- High res CT ... chest scan), CBC ... diagnosis #evaluation #differential
Tram Track Sign on Chest CT
 • Parallel, non-tapering airways, extending to the lung periphery.
 •
CT • Parallel, ... extending to the lung ... necrotizing pna, ABPA ... #Lung #Pulmonary ... #diagnosis #radiology
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... Patterns - Differential ... Alveolar Proteinosis, Lymphoma ... Cystic Fibrosis, ABPA ... #pulmonary #radiology
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
throughout the lungs ... • Malignancy: Lymphoma ... #Radiology #differential ... #diagnosis #pulmonary ... CXR #clinical #CT
CT Angiogram Sign on Chest CT
 • Prominent pulm vessels traversing through an area of parenchymal
CT Angiogram Sign ... on Chest CT • ... adeno Ca, pulm lymphoma ... #Lung #Pulmonary ... #diagnosis #radiology
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
in HIV - Differential ... • 3 syndromes: ABPA ... • CT: Halo sign ... Infections #HIV #AIDS #pulmonary ... #differential #
Upper Lobe Lung Diseases - STAR CHASERS Mnemonic

S - Silicosis
T - Tuberculosis
A - Ankylosing Spondylitis
R -
Upper Lobe Lung ... - Aspergillus/ABPA ... caused by a rigid chest ... #diseases #differential ... #STARCHASERS #radiology
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Hypersensitivity: ABPA ... in the adjacent lung ... of the affected lung ... CT) • Broncho-arterial ... #differential #
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
Thickening of the lung ... with interstitial lung ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #CTChest #Reticular
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
Illnesses: • Pulmonary ... Advanced HIV (CD4 ... • Dyspnea, • Chest ... Imaging, high res CT ... NTM #Infections #differential