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On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
a patient with active ... TB. 7. ... #Clinical #Diagnosis ... #Radiology #Pulmonary ... Comparison #Table #RadiologyAssistant
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: • ... : Latent TB: • ... TB - Only latent ... Active TB: •
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
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: • ... : Latent TB: • ... TB - Only latent ... Active TB: •
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
TB • LTBI is diagnosed ... result with no clinical ... used to exclude pulmonary ... #Workup #TB #Latent ... #Active #LatentTB
TB
This patient presented first with the CXR on the left.
The findings are:
Widespread ill-defined densities, which are
reactivation of a latent ... TB. ... #Clinical #Radiology ... #Active #SecondaryTB ... #Cavitary #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
Immune Reconstitution Inflammatory Syndrome - Overview of IRIS

What Is IRIS?
	• A state of hyperinflammatory response that
noncompliance • Clinical ... initiation Clinical ... , pulmonary infiltrates ... lymphadenitis, pulmonary ... • Persistently active
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
infections • Nodular ... Centrilobular nodules ... of right middle lobe ... Kansasii: • Mimics TB ... Disease: Clinical