Systemic arterial collateral esophageal indentations in pseudotruncus arteriosus.

Barium esophagrams were obtained in two patients with respiratory problems whose underlying congenital heart disease was pseudotruncus arteriosus type I. The esophagrams revealed vascular indentations on the esophagus, one posteriorly, and the other anteriorly. Both types of indentations were secondary to aorto-pulmonary communicating arteries from the descending aorta.