Some unusual roentgenologic findings associated with marked gastric dilatation.

Gastric dilatation may be the result of organic obstruction or may occur as an acute "functional" phenomenon.In the vast majority of patients both the presence and nature of the gastric dilatation are easily determined by clinical and roentgenologic means.Occasionally, marked dilatation of the stomach gives rise to a diagnostic and/or management problem. Some illustrative examples of such cases are presented. These include partial gastric volvulus secondary to transdiaphragmatic herniation of the transverse colon through the foramen of Morgagni, massive gastric distention simulating ascites and obstruction at the esophago-gastric junction associated with gross distention of the stomach.