Confined gastric perforation: ultrasound and computed tomographic diagnosis.

A case of confined gastric perforation due to a penetrating antral ulcer diagnosed on ultrasound and computed tomography is presented. Air bubbles were visualized adjacent to the anterior gastric and bulbar wall, associated with small amounts of fluid in the subhepatic region and in the omental bursa. Careful examination of the subhepatic region and upper abdominal cavity in a patient with acute epigastric pain may lead to a correct diagnosis of such confined perforations.