A CASE OF GASTRIC GASTROINTESTINAL STROMAL TUMOR ARISING FROM THE GASTRIC FUNDUS COMPLICATED WITH BALL VALVE SYNDROME

Abstract

A 67-year-old woman was found to have a gastric submucosal tumor with a 3-cm diameter in the fundus. At routine follow-up, the tumor showed growth, so a detailed examination was planned. However, she developed epigastric pain and tarry stool before the detailed examination was performed and was thus admitted. A gastroduodenal endoscopic examination revealed gastroduodenal invagination of the submucosal tumor arising from the gastric fundus. She was diagnosed with ball valve syndrome. Endoscopic reduction was difficult, so surgical treatment was selected. Pathological findings revealed that the tumor was a gastrointestinal stromal tumor (GIST). Cases of ball valve syndrome caused by a GIST of the fundus are relatively rare. We herein report this case with a review of the literature.