9 results
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
pneumothorax, bronchiectasis ... and Culture • CXR ... Tuberculosis Treatment ... Initiating Treatment ... • Check CXR and
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
pneumothorax, bronchiectasis ... and Culture • CXR ... Tuberculosis Treatment ... Initiating Treatment ... • Check CXR and
Bronchiectasis - Permanent dilation of an airway
WHAT CAN YOU SEE ON CT?
1) Lack of tapering of
Bronchiectasis - ... CAN YOU SEE ON CT ... Infection (Bacterial, TB ... Rheumatologic/Autoimmune diseae ... pulmonary #diagnosis #differential
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
• Infection: TB ... high-resolution chest CT ... Nontuberculous mycobacteria ... Treatment: ... #pulmonary #differential
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
• Most common cause ... Blood cultures • CXR ... ) • CXR upright ... seen • Chest CT ... westermani • Other: TB
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
status NTM Cause ... Centrilobular nodules - Bronchiectasis ... Kansasii: • Mimics TB ... Imaging, high res CT ... NTM #Infections #differential
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
200: CMV, HSV Mycobacterial ... failure, COPD, Lung ... +/- High res CT ... Fungal, AFB), TB ... Infectious Diseases
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
in HIV - Differential ... Diagnosis Framework Disease ... angioinvasive disease ... • CT: Halo sign ... infiltrates, mimicking TB
Broncholithiasis - Differential Diagnosis Framework

 • Also known as: Lung stones, pulmoliths, pneumoliths, bronchial calculi
 •
Also known as: Lung ... pneumonia, • Bronchiectasis ... bronchus • Chest CT ... : • Mycobacterium ... Tracheobronchial Diseases