11 results
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
Pulmonary Infections ... failure, COPD, Lung ... • CD4 < 200: Pulmonary ... CXR +/- High res CT ... chest scan), CBC
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
throughout the lungs ... - Endemic fungi ... , Sarcoidosis, HSP ... #diagnosis #pulmonary ... CXR #clinical #CT
Bronchiectasis - Permanent dilation of an airway
WHAT CAN YOU SEE ON CT?
1) Lack of tapering of
Bronchiectasis - ... CAN YOU SEE ON CT ... Immunodeficiency 3) Infection ... Bacterial, TB, NTM, Fungal ... #pulmonary #diagnosis
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Loss of weight • Chest ... in the adjacent lung ... of the affected lung ... high-resolution chest ... CT) • Broncho-arterial
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... (TB, Fungal) ... Sarcoidosis • Bronchiectasis ... #CT #Patterns # ... #radiology
Broncholithiasis - Differential Diagnosis Framework

 • Also known as: Lung stones, pulmoliths, pneumoliths, bronchial calculi
 •
Also known as: Lung ... pneumonia, • Bronchiectasis ... CT • Bronchoscopy ... Causes: • Mycobacterium ... Noninfectious Causes
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
polymicrobial infection ... • Most common cause ... CT Lung Abscess ... Prevotella • Fungal ... #Abscess #pulmonary
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... Pseudomonas FUNGAL ... • CT: Halo sign ... factor • May cause ... #AIDS #pulmonary
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
status NTM Cause ... Centrilobular nodules - Bronchiectasis ... • Dyspnea, • Chest ... Imaging, high res CT ... diagnosis • Microbiologic
Disseminated Actinomycosis- ...Computed tomography of the chest and abdomen revealed multiple pulmonary nodules (Panel A) associated
tomography of the chest ... revealed multiple pulmonary ... caused by actinomyces ... NEJM #clinical #radiology ... #CT #disseminated