22 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
• HIV: 2/3 pulmonary ... characteristic features Clinical ... TB: • Tuberculin ... and Culture • CXR ... disease • Check CXR
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
• HIV: 2/3 pulmonary ... characteristic features Clinical ... TB: • Tuberculin ... and Culture • CXR ... disease • Check CXR
Identify a Positive Tuberculosis (TB) Skin Test
#Diagnosis #Tuberculosis #LatentTB #Tuberculin #SkinTest #TST #Interpretation #Induration #Thresholds #Diameters
Identify a Positive Tuberculosis ... (TB) Skin Test ... #Diagnosis #Tuberculosis ... #LatentTB #Tuberculin
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
LATENT TB • ... result with no clinical ... interpreted Tuberculin ... used to exclude pulmonary ... #Latent #Active
Tuberculin Skin Test Interpretation - Threshold for treatment
Induration cutoff >5mm:
 • Recent exposure to an individual
Tuberculin Skin ... individual with active TB ... • Abnormal CXR ... consistent with old TB ... individuals #Tuberculosis
Pulmonary Tuberculosis - Patterns of Involvement
 • Scarring, Nodules and Consolidation
    - Lobar
Pulmonary Tuberculosis ... #Tuberculosis # ... TB #Patterns #chest ... #xray #clinical ... #radiology #CXR
Pott's Disease in Tuberculosis - Diagnosis and Management Summary
Epidemiology:
 - Typically from TB endemic areas
 -
Pott's Disease in Tuberculosis ... extrapulmonary cases Clinical ... symptoms of active pulmonary ... tissue damage - CXR ... for concomitant pulmonary
Miliary Tuberculosis 
Hematogenous dissemination of Mycobacterium tuberculosis 
Clinical: 
 • Failure to thrive 
 • Fever
Miliary Tuberculosis ... Mycobacterium tuberculosis ... Clinical: ... glands #Miliary #Tuberculosis ... #TB #Pulmonary
Notice the cavitation especially on the right.
In the left upper lobe there is probably some traction-bronchiectasis
#Clinical #Radiology ... #Pulmonary #CTChest ... #Tuberculosis # ... TB #Active #SecondaryTB
Cavitary Lesion with Air-Fluid Level on Chest XRay

70+ year old man with PMH of latent TB
man with PMH of latent ... TB s/p treatment ... Labeled CXR: ... #ChestXRay #Clinical ... #Pulmonary #Radiology