Abstract
We report herein on a case of autoamputation of a colonic tumor after endoscopic reduction of an intussusception. A 25-year-old woman was admitted to our hospital for abdominal pain in the right lower quadrant. Abdominal ultrasonography and contrast enhanced computed tomography revealed colonic intussusception. For reduction and diagnosis, colonoscopy was performed, which showed a tumor in the cecum causing invagination of the ascending colon. The tumor, measuring 20 millimeters in diameter, was suspected as being a juvenile polyp. Fifty days after the first colonoscopy, the patient underwent colonoscopy for re-evaluation and endoscopic resection of the tumor, but the tumor had disappeared.
Adult intussusceptions are rare, and most adult intussusceptions are caused by malignancy, which requires surgical treatments. But recently, similar to our case, there are case reports of intussusceptions treated only with endoscopic reduction which occurred from benign diseases. In our case, we thought that the tumor had detached spontaneously and had been cured completely due to the endoscopic reduction. On the other hand, there are risks to endoscopic reduction, such as intestinal perforation. In addition, if the lead point is malignant, endoscopic reduction can cause intraluminal seeding or venous tumor dissemination. Nevertheless, colonoscopy may provide information to avoid unnecessary surgery. If the situation allows, we should consider endoscopic reduction.
