Adult intussusception represents 1% of patients with bowel obstruction and 5% of all intussusception. It presents with a variety of acute, intermittent and chronic symptoms, thus making its preoperative diagnosis is difficult. Overall, colonic intussusception in adults is most often related to a primary carcinoma and benign smooth muscle tumors of the gastrointestinal tract are uncommon. We experienced a case of adult intussusception of the colon caused by leiomyoma. The 18-year old man was suffered from intermittent, colicky left lower quadrant pain and bloody diarrhea. Physical examination revealed a mass in the left lower abdomen. An abdominal CT scan revealed a "target mass" in the distal colon. The patient was treated with segmental resection of the descending colon and anastomosis. Pathology revealed a benign leiomyoma of the distal colon as the leading point of the colo-colic intussusception. His postoperative course was uneventful and did well.
Abdomen ; Adolescent ; Adult* ; Colon* ; Colon, Descending ; Diagnosis ; Diarrhea ; Gastrointestinal Tract ; Humans ; Intussusception* ; Leiomyoma* ; Pathology ; Physical Examination ; Smooth Muscle Tumor ; Tomography, X-Ray Computed