13 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
: • Endogenous ... characteristic features Clinical ... Active TB: • ... and Culture • CXR ... #TB #Diagnosis
The PA-film shows a silhouette sign of the left heart border.
Even without looking at the lateral
shows a silhouette sign ... anteriorly in the left lung ... caused by Sterptococcus ... #Clinical #Radiology ... #CXR #Pneumonia
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
: • Endogenous ... characteristic features Clinical ... Active TB: • ... and Culture • CXR ... #TB #Diagnosis
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
- Differential Diagnosis ... • CT: Halo sign ... Tuberculosis Pneumonia ... factor • May cause ... infiltrates, mimicking TB
Pott's Disease in Tuberculosis - Diagnosis and Management Summary
Epidemiology:
 - Typically from TB endemic areas
 -
extrapulmonary cases ... Clinical Signs ... /symptoms of active ... tissue damage - CXR ... #TB #Diagnosis
Tree in Bud Sign
The Tree-in-Bud sign represents Endobronchial spread in a linear branching pattern and centrilobular
Tree in Bud Sign ... endobronchial TB ... bacterial/viral/fungal pneumonia ... #diagnosis #clinical ... #radiology #ChestCT
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... • Most common cause ... Lung Abscess - Clinical ... Blood cultures • CXR ... westermani • Other: TB
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
throughout the lungs ... Mycobacterium: Tuberculosis ... rarely typical pneumonia ... #pulmonary #CXR ... #clinical #CT
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
densities in both lungs ... multiple ill-defined masses ... the differential diagnosis ... #Clinical #Radiology ... #CXR #Peripheral
Based on the images alone, it is usually not possible to determine the cause of the
determine the cause ... Lobar pneumonia ... nodular interstitial lung ... #Clinical #Diagnosis ... #Radiology #CXR