Crepitance

What is crepitance?  What exactly is it?  For example, what does it mean in this sentence, "Crepitance over left chest near abraded/bruised area at anteriior axillary line over 5th-8th intercostal spaces."  Where can I learn more about crepitance?

[National Jewish]

Crepitance is a grating or crackling sound, such as might be made by the two ends of a broken bone rubbing against each other. Crepitant rales or "crackles" are sounds heard characteristically over a portion of lung, either congested (with fluid) or infected (with pus). The sound is akin to that heard when salt is poured on paper.

In learning more about crepitance, it is important to work with the individual's healthcare provider to determine the underlying cause of crepitance.

[Inquiring_Mind1992]

A related discussion, Is crepitance also used to describe gas under the skin? was started.