Abstract
We report a case of a ruptured gastrointestinal stromal tumor (GIST) of the stomach associated with hemoperitoneum. A 67-year-old man complained of having developed sudden epigastralgia after supper. He was transferred to our hospital on the following day and examination revealed tenderness of the whole abdomen. Because abdominal computed tomography (CT) revealed bleeding in the splenic hilum and the liver surface, the patient was admitted. Angiography revealed staining of a tumor measuring about 5 cm, fed by a short gastric artery, with no extravasation. Enhanced CT revealed continuity of the tumor with the upper stomach. Surgery was undertaken and a diagnosis of gastric GIST was made. During the operation, about 300 ml of bloody ascites and a ruptured tumor measuring 50×60×35 mm in size was noted between the upper of the stomach and spleen. Therefore, partial gastric resection was undertaken, and histopathological examination revealed a diagnosis of GIST of the stomach, with the tumor being positive for KIT. The possibility of intraperitoneal dissemination must be borne in mind in such cases with a ruptured tumor.