Abstract
A 73-year-old man was admitted to another hospital because of abdominal pain and diagnosed as intestinal obstruction. About one moth later a right hemicolectomy was performed with a diagnosis of cecal cancer. On and after the 8th postoperative day he became suffered from frequent vomiting. The patient was referred to the hospital. Upper gastrointestinal series showed deformity and obstruction of the distal stomach. Endoscopic examination revealed the anterior wall of the antrum protruding into the prepylorus. From these findings the pyloric obstruction due to extrinsic pressure on the anterior wall of the antrum was supposed and the patient was operated on. On lapalotomy, it was gastric intussusception due to extrinsic pressure of a drain indwelt after the hemicolectomy and the intussusception was reduced. We commonly address gastroduodenal intussuception due to a gastric tumor or gastrojejunal intussusception after distal gastrectomy as gastric intussuseception. So far there has been no case report of gastrogastric intussusception caused by extrinsic pressure outside the stomach, and this occurrence is also a rare complication of drainage.
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