2023 Volume 65 Issue 1 Pages 43-48
A 73-year-old man was admitted to our hospital with abdominal pain and distension. Abdominal contrast-enhanced computed tomography (CT) showed intestinal intussusception from the cecum to the ascending colon. CT revealed terminal ileum intussusception. After endoscopic repositioning, laparoscopic ileocecal resection was performed. Pathological findings showed intestinal intussusception caused by small intestinal leiomyosarcoma. The postoperative CS revealed an elevated lesion, which was treated by endoscopic mucosal resection. Pathologically, colonic leiomyoma was identified. We report this case since it is rare for both small intestinal leiomyosarcoma and colorectal leiomyoma to occur concurrently.