Pulmonary artery pseudoaneurysm has been described as a complication o
f Swan-Ganz catheterization and right heart catheterization. Isolated
cases of this condition occurring in blunt and penetrating chest traum
a have been reported. In this communication, we describe the case of a
patient with intracranial hemorrhage who required positive-pressure v
entilation and in whom subsequent pneumothorax developed, necessitatin
g tube thoracostomy. A persistent opacification of the lung field resu
lted in evaluation with computed chest tomography and color-flow Doppl
er ultrasonography. A pseudoaneurysm of the lingular segmental artery
was identified and successfully obliterated by Gelfoam coil embolizati
on. (C) 1997 by The Society of Thoracic Surgeons.