16 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
characteristic features Clinical ... Active TB: • ... TB: • Tuberculin ... TB - Only latent ... Active TB: •
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
characteristic features Clinical ... Active TB: • ... TB: • Tuberculin ... TB - Only latent ... Active TB: •
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 ... #Latent #Active ... #LatentTB #ActiveTB
Tuberculin Skin Test Interpretation - Threshold for treatment
Induration cutoff >5mm:
 • Recent exposure to an individual
Tuberculin Skin ... individual with active ... TB • Abnormal ... CXR consistent ... individuals #Tuberculosis
The Spectrum of Tuberculosis

As shown in the graphic from our Primer, exposure to M. tuberculosis can
The Spectrum of Tuberculosis ... exposure to M. tuberculosis ... have negative tuberculin ... Spectrum #Table #Latent ... #Subclinical #Active
Pott's Disease in Tuberculosis - Diagnosis and Management Summary
Epidemiology:
 - Typically from TB endemic areas
 -
Pott's Disease in Tuberculosis ... extrapulmonary cases Clinical ... signs/symptoms of active ... Mycobacterium tuberculosis ... tissue damage - CXR
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
Primairy TB is usually clinically silent.
In 5% of infected individuals the immunity is inadequate and clinically
clinically silent ... active disease ... reactivation of the latent ... On the CXR it is ... #CXR #Tuberculosis
TB
This patient presented first with the CXR on the left.
The findings are:
Widespread ill-defined densities, which are
first with the CXR ... reactivation of a latent ... #Clinical #Radiology ... #CXR #Tuberculosis ... #TB #Active #SecondaryTB