American Journal of Roentgenology, Vol 144, Issue 1, 37-38
Copyright © 1985 by American Roentgen Ray Society
Tilted air-fluid interfaces on chest radiographs
H Jackson
and
P Stark
Three patients had hydropneumothoraces in which the air-fluid interfaces were tilted from the horizontal. One was examined fluoroscopically, and the interface "seesawed" synchronously with the heartbeat. Displacement of the fluid by cardiac pulsation is the most likely usual cause of tilted air-fluid interfaces in the chest.