10 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
affecting the lungs ... pneumothorax, bronchiectasis ... and Culture • CXR ... • Check CXR and ... #Diagnosis #Management
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
affecting the lungs ... pneumothorax, bronchiectasis ... and Culture • CXR ... • Check CXR and ... #Diagnosis #Management
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Causes: • Cystic fibrosis ... Connective tissue diseases ... : TB, NTM, PNA ... in the adjacent lung ... of the affected lung
Bronchiectasis - Permanent dilation of an airway
WHAT CAN YOU SEE ON CT?
1) Lack of tapering of
Bronchiectasis - ... Immunodeficiency 3) Infection ... (Bacterial, TB, ... Rheumatologic/Autoimmune diseae ... #pulmonary #diagnosis
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
Pulmonary Infections ... failure, COPD, Lung ... Evaluation: Imaging (CXR ... Fungal, AFB), TB ... Diseases Fellows
Tree-in-bud almost always indicates the presence of:
Endobronchial spread of infection (TB, MAC, any bacterial bronchopneumonia)
Airway disease
(TB, MAC, any bacterial ... (cystic fibrosis ... , bronchiectasis ... Diagnosis #Radiology #Pulmonary ... #CTChest #TreeInBud
Hemoptysis - Differential Diagnosis Framework
Massive Hemoptysis: >150-300 mL in 24h
Airway disease: 
 • Bronchitis, Bronchiectasis, Malignancy
in 24h Airway disease ... • Bronchitis, Bronchiectasis ... , COPD, Cystic fibrosis ... Parenchyma: • Infection ... : Bacterial (TB,
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
polymicrobial infection ... Blood cultures • CXR ... ) • CXR upright ... westermani • Other: TB ... #Abscess #pulmonary
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
• Domestic and wild ... Illnesses: • Pulmonary ... Centrilobular nodules - Bronchiectasis ... Kansasii: • Mimics TB ... • Dyspnea, • Chest
Amiodarone Induced Lung Toxicity Summary

Who?
• 5% of patients
• Dose ≥ 400 mg per day

How?  Possible
Amiodarone Induced Lung ... opacities; traction bronchiectasis ... failure - Infectious ... Exclusion of other ILDs ... #diagnosis #management