23 results
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
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
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
Active: Symptomatic ... : • Tuberculin ... Active TB: • ... 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
Active: Symptomatic ... : • Tuberculin ... Active TB: • ... and Culture • CXR ... disease • Check CXR
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
LATENT TB • ... IGRA/QuantiFERON-TB ... interpreted Tuberculin ... TB AFB smear microscopy ... Diagnosis #Workup #TB
Notice the cavitation especially on the right.
In the left upper lobe there is probably some traction-bronchiectasis
Pulmonary #CTChest #Tuberculosis ... #TB #Active #SecondaryTB ... #Cavitary #TractionBronchiectasis
Primairy TB is usually clinically silent.
In 5% of infected individuals the immunity is inadequate and clinically
and clinically active ... On the CXR it is ... with cavitaty formation ... #Tuberculosis # ... TB #Cavitary #SecondaryTB
Cavitary Lesion with Air-Fluid Level on Chest XRay

70+ year old man with PMH of latent TB
Cavitary Lesion ... PMH of latent TB ... is his original CXR ... Labeled CXR: ... #Cavitary #CXR
TB
This patient presented first with the CXR on the left.
The findings are:
Widespread ill-defined densities, which are
first with the CXR ... Cavity in the right ... #Tuberculosis # ... TB #Active #SecondaryTB ... #Cavitary #RadiologyAssistant
Pott's Disease in Tuberculosis - Diagnosis and Management Summary
Epidemiology:
 - Typically from TB endemic areas
 -
Pott's Disease in Tuberculosis ... signs/symptoms of active ... Mycobacterium tuberculosis ... tissue damage - CXR ... Potts #Disease #Tuberculosis