An unusual ileocecal tumor

Abstract

We report the case of diffuse large B-cell lymphoma (DLBCL) with a fistula from the ileum to the cecum. A 57-year-old male came to the hospital complaining of abdominal pain. He underwent an abdominal computed tomography with contrast, which showed full-thickness wall thickening at the ileocecal region. He underwent a lower gastrointestinal endoscopy. No tumor was found at the ileocecal valve, and macroscopic findings were normal. The scope was advanced to the cecum, an additional outpouching was found. The outpouching appeared to be an ileocecal fistula. The diagnosis was DLBCL.