Abstract
We report a case of type 4 cecal cancer with intussusception caused by lipohyperplasia of the ileocecal valve.
A 71-year-old man presented with right lower abdominal pain. An abdominal CT scan showed strongly enhanced wall thickness of the cecum, in which a lipomatous tumor was impacted. A contrast enema using gastrographin did not visualize the oral side from the lower part of the ascending colon demonstrating a filling defect in a shape of a claw. Colonoscopy revealed a soft yellow tumor 5 cm in longer diameter which had invaginated in the ascending colon. The tumor was pushed back by air, however, the colon wall was looked erosive. We suspected ischemic change of the colon caused by intussusception led by the lipoma, and performed ileocecal resection. The pathological diagnosis was well differentiated adenocarcinoma, type 4 and lipohyperplasia of the ileocecal valve. We present this case with a review of the literature.
