15 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
90%) & develop latent ... Latent: Asymptomatic ... : Latent TB: • ... TB - Only latent ... #LatentTB
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
90%) & develop latent ... Latent: Asymptomatic ... : Latent TB: • ... TB - Only latent ... #LatentTB
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
Tuberculosis Testing LATENT ... TB • LTBI is diagnosed ... result with no clinical ... #Workup #TB #Latent ... #Active #LatentTB
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 ... TractionBronchiectasis #RadiologyAssistant
TB
This patient presented first with the CXR on the left.
The findings are:
Widespread ill-defined densities, which are
TB This patient ... reactivation of a latent ... #Clinical #Radiology ... #Active #SecondaryTB ... #Cavitary #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
appearance in a patient ... with active TB. ... #Clinical #Diagnosis ... #Radiology #Pulmonary ... Comparison #Table #RadiologyAssistant
Nontuberculous mycobacteria
Nontuberculous mycobacteria, also known as atypical mycobacteria, are all the other mycobacteria which can cause
which can cause pulmonary ... disease resembling TB ... active disease ... #Clinical #Radiology ... AirFluidLevel #RadiologyAssistant
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 ... the left upper lobe ... #SecondaryTB #RadiologyAssistant
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 ... original CXR Labeled ... CXR #ChestXRay #Clinical ... #Pulmonary #Radiology
There is a hydropneumothorax.
Notice the air-fluid level (blue arrow).
The upper lobe is still attached to the
The upper lobe is ... is a possible diagnosis ... airways leading to pulmonary ... #Clinical #Radiology ... Lymphangioleiomyomatosis #LAM #RadiologyAssistant