18 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
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, ... Rheumatologic/Autoimmune diseae
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 - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
: TB, NTM, PNA ... in the adjacent lung ... of the affected lung ... high-resolution chest CT ... mycobacteria Treatment
Chronic Cough - Differential Diagnosis Algorithm
Red Flags:
 • Fever, night sweats, chills (infection)
 • Weight loss,
sweats, chills (infection ... disease or CHF) ... ) • Abnormal CXR ... refer + order CT ... Diagnosis #Algorithm #causes
Hemoptysis - Differential Diagnosis Framework
Airways: 
 • Bronchitis
 • Bronchiectasis
 • Malignancy: Primary bronchogenic CA, Endobronchial
Bronchitis • Bronchiectasis ... Parenchyma: • Infection ... : TB, Paragonimus ... westermani, PNA, Lung ... syndrome • Valvular Disease
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
polymicrobial infection ... • Most common cause ... ) • CXR upright ... seen • Chest CT ... westermani • Other: TB
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
failure, COPD, Lung ... Evaluation: Imaging (CXR ... +/- High res CT ... Fungal, AFB), TB ... Diseases Fellows
Tuberculin Skin Test Interpretation - Threshold for treatment
Induration cutoff >5mm:
 • Recent exposure to an individual
Threshold for treatment ... • Abnormal CXR ... consistent with old TB ... disease • HIV ... carcinoma of head/neck/lung
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
• Chronic lung ... Bronchiectasis ... lymphocytic interstitial lung ... Chest CT: • Ground-glass ... DDX - Other causes