RT Journal Article
SR Electronic
T1 Rectosigmoid carcinoma presenting as full-thickness rectal prolapse
JF BMJ Case Reports
JO BMJ Case Reports
FD BMJ Publishing Group Ltd
SP e230409
DO 10.1136/bcr-2019-230409
VO 12
IS 12
A1 Daniel Montwedi
YR 2019
UL http://casereports.bmj.com/content/12/12/e230409.abstract
AB A 34-year-old man with recent-onset constipation presented with colonic obstruction due to a palpable rectal tumour. Colostomy relieved the obstruction and biopsy revealed carcinoma. During workup, full-thickness rectal prolapse occurred with the tumour at the apex of an intussusception. Imaging revealed a low rectal tumour and no metastases. An abdominal oncological rather than perineal resection of the rectum was planned. At laparotomy, the tumour was reduced and was seen to originate at the rectosigmoid junction. Surgery was successful and follow-up has been clear. Histology revealed an adenocarcinoma with microsatellite instability. Rectal prolapse due to tumour intussusception is very rare. In this young man, it was due to straining at stool because of constipation and tenesmus rather than pelvic floor abnormality. An associated colorectal tumour should be considered in patients with rectal prolapse. In such cases, surgical and adjuvant management may need to be modified.