CXR Flashcards
0
Q
What is the difference between a mass and a nodule?
A
Mass > 3cm
Nodule < 3cm
1
Q
What are the 3 density comparisons used when describing soft tissue?
A
Bony/calcific density
Soft tissue density
Air density
2
Q
What is the significance of a poorly defined margin vs a well defined margin?
A
Poorly defined is suggestive of an infiltrative mass
4
Q
What are the 4 features to comment on when assessing the adequacy of an xray?
A
Exposure
Inhalation (anterior and posterior ribs)
Rotation (look at clavicles vs sternum)
Penetration (can you see the spine?)
5
Q
What is an air bronchogram?
A
Where branching radiolucent columns of air corresponding to bronchi are seen
6
Q
What does free air under the hemi-diaphragm signify?
A
Intra-abdominal air
