11 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
: • Upper lobe ... pneumothorax, bronchiectasis ... Diagnosis: Latent ... Active TB: • ... #TB #Diagnosis
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
: • Upper lobe ... pneumothorax, bronchiectasis ... Diagnosis: Latent ... Active TB: • ... #TB #Diagnosis
Notice the cavitation especially on the right.
In the left upper lobe there is probably some traction-bronchiectasis
the left upper lobe ... some traction-bronchiectasis ... Clinical #Radiology #Pulmonary ... #CTChest #Tuberculosis ... #TB #Active #SecondaryTB
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
LATENT TB • ... LTBI is diagnosed ... IGRA/QuantiFERON-TB ... intermediate risk of disease ... used to exclude pulmonary
Pott's Disease in Tuberculosis - Diagnosis and Management Summary
Epidemiology:
 - Typically from TB endemic areas
 -
Pott's Disease in ... signs/symptoms of active ... pulmonary TB PE ... for concomitant pulmonary ... TB #Diagnosis #Management
Tuberculin Skin Test Interpretation - Threshold for treatment
Induration cutoff >5mm:
 • Recent exposure to an individual
Tuberculin Skin Test ... individual with active ... TB • Abnormal ... individuals #Tuberculosis ... #diagnosis #Interpretation
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Connective tissue diseases ... • Infection: TB ... , in advanced disease ... parenchyma Diagnosis ... #diagnosis
Bronchiectasis - Permanent dilation of an airway
WHAT CAN YOU SEE ON CT?
1) Lack of tapering of
Bronchiectasis - ... involving a segment or lobe ... Infection (Bacterial, TB ... Rheumatologic/Autoimmune diseae ... #pulmonary #diagnosis
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
Mycobacterium tuberculosis ... Centrilobular nodules - Bronchiectasis ... of right middle lobe ... Kansasii: • Mimics TB ... patients with typical tuberculosis
IDSA Recommendations for Treating Mycobacterium Tuberculosis Infection and Disease in HIV-AIDS
Treating LTBI (to prevent TB disease)
Indications:
Mycobacterium Tuberculosis ... Infection and Disease ... TB Disease: • ... and molecular diagnostic ... Mycobacterium #Tuberculosis