Colorectal intussusception with rectal prolapse related to cecal lipoma in adult: A rare case report and review of the literature.

Colonic intussusception due to lipoma is extremely rare. Very few cases were reported in the literature of cecal lipoma leading to the intussusception of the whole proximal colon till the rectum. We report a rare case of a 39-year-old female patient with cecal lipoma causing colo-colonic intussusception involving the entire length of the proximal colon and the overall mass prolapsed into the pelvis that could be palpated in rectal examination. The case presented with a giant mass with clinical manifestations of obstruction. An extended right hemicolectomy and end ileostomy were performed due to intestinal dilation and intra-abdominal contamination. To the best of our knowledge, this is the second case of cecal lipoma leading to intussusception of the whole proximal colon till to the rectum reported in the relevant literature. Whenever a colonic mass results in intussusception, the incidence of malignancy is slightly higher (60%), so a proper oncological resection should be performed if the pathology is not known preoperatively.