26 results
Halo Sign on Chest CT
 • SPN or mass surrounded by a circumferential GGO
 • DDx:
Sign on Chest CT ... • SPN or mass ... #Halo #Sign #CT ... #diagnosis #radiology ... #clinical
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
in HIV-AIDS Bacterial ... PCP, Aspergillus spp ... failure, COPD, Lung ... CXR +/- High res CT ... HIVAIDS #workup #diagnosis
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
Pattern - Chest Radiology ... throughout the lungs ... , Sarcoidosis, HSP ... pulmonary #CXR #clinical ... #CT
Radiographic appearances of pulmonary diseases in HIV/AIDS Patients
 • Diffuse Interstitial Infiltrates: Pneumocystis jirovecii, M.tuberculosis, Histoplasma
pulmonary diseases in HIV ... ., NHL; Lung cancer ... tuberculosis Infectious ... #differential #diagnosis ... #chestCT #radiology
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
to 8 years Clinical ... • Chronic lung ... lymphocytic interstitial lung ... Chest CT: • Ground-glass ... levels are within normal
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
Pulmonary Disease: Clinical ... Diagnosis Of NTM ... • Clinical (Symptoms ... Imaging, high res CT ... #differential #diagnosis
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
in the adjacent lung ... of the affected lung ... high-resolution chest CT ... - BAR >1.0 is abnormal ... , CCP, ANCA • HIV
Corona Radiata (Sunburst sign) on Chest CT
 • SPN or mass, with spiculated and inegular margins
sign) on Chest CT ... • SPN or mass, ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... Diagnosis Framework ... • CT: Halo sign ... Can be normal ... #Infections #HIV
Head Cheese Sign on Chest CT
 • Juxtaposition of distinct radiographic areas of low, normal and
areas of low, normal ... DDx: sub-acute HP ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical