CLINICAL HISTORY.—A 3-year-old white boy was admitted to the hospital because of frequent intermittent vomiting and abdominal pain which was interspersed with bouts of diarrhea. These symptoms began approximately four weeks prior to admission. At no time was fever present, and other than restlessness, the patient did not appear ill.
The past history was essentially negative except that he failed to gain weight properly. The laboratory findings were within the limits considered normal. When examined, the positive findings were confined to the abdomen where a vague tender mass could be palpated in the epigastrium.
An upper gastrointestinal (GI) tract series was obtained (Fig 1). Surgery was performed three days after admission.
Denouement and Discussion
Duplication of the Stomach
The upper GI tract examination revealed a smooth, extrinsic, pressure defect along the greater curvature of the stomach extending to the duodenal bulb. At surgery a duplication was discovered which measured about