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Medical Term:

Pfuhl sign

Pronunciation: ful

Definition: the pressure of pus within a subphrenic abscess rises during inspiration and falls during expiration, the reverse of what happens in the case of a purulent collection above the diaphragm; when the diaphragm is paralyzed this distinction is lost.

© Copyright 2016 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.