Abstract
A 62-year-old man with abdominal fullness and epigastralgia was diagnosed with intussusception caused by a submucosal tumor of the ascending colon based on colonoscopy, barium enema and abdominal CT-scan. Laparotomy confirmed ileocolic intussusception of the transverse colon. Intraoperative reduction was not successful, necessitating right hemicolectomy. Histological diagnosis of the tumor showed it to be benign schwannoma. Almost all adult intussusception results from organic disease such as a tumor. Gastrointestinal schwannoma of the cecum is especially rare.