A CASE OF GASTRIC DUPLICATION

Abstract

Duplication of the gastrointestinal organs commonly occurs in the terminal ileum. Duplication of the stomach is relatively rare and represents about 10% of all gastrointestinal duplications. Recent our experience with a case of gastric duplication is presented here. A 25-year-old man visited another hospital because of upper abdominal pain and was suspected of having a retroperitoneal tumor on abdominal ultrasonography under a diagnosis of duodenal ulcer. The patient was referred to the hospital. After admission, abdominal ultrasonography, CT, and magnetic resonance imaging revealed a 5.8×5×4cm unilocular cyst being adjacent to and upper the tail of the pancreas. Laparotomy was performed with a diagnosis of pseudocystoma of the pancreas. The cystoma was in the abdominal cavity and had the common serosa to the stomach in front of the pancreas. It was smooth in surface and soft, has no communication with other organs macroscopically, and no feeding vessel was seen. It appeared that the cystoma arised in the posterior wall of the stomach. When the cystoma was freed from the gastric wall, there was no communication with the gastric lumen, but was only inflow vessels from the gastric wall. Histopathologically, columnar epithelium with ducts and villi was confirmed and muscle layer and digestive structure were equipped. The difinite diagnosis of duplication of the stomach was made.