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Flashcards in Fleischner Terms Deck (6)
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1
Q

Define:

Air bronchogram

A

An air bronchogram is a pattern of air-filled (low-attenuation) bronchi on a back- ground of opaque (high-attenuation) air- less lung.

2
Q

Describe finding:

A

Air bronchogram

3
Q

Define:

Air crescent

A

A collection of air in a crescentic shape that separates the wall of a cavity from an inner mass. The air crescent sign is often considered characteristic of either Aspergillus colo- nization of preexisting cavities or re- traction of infarcted lung in angioinvasive aspergillosis

4
Q

Describe finding:

A

Air crescent

5
Q

Define:

Apical cap

A

Homogenous soft tissue attenuation capping the extreme apex of the lung. Usually caused by intrapulmonary and pleural fibrosis.

6
Q

Describe finding:

A

Apical cap