Ileosigmoid Knot: A Rare Cause of Intestinal Obstruction.

Ileosigmoid knotting also known as compound volvulus or double volvulus is a rare cause of intestinal obstruction. Here, we present a case of acute intestinal obstruction in shock. The patient was resuscitated taken up for an emergency exploratory laparotomy, which revealed a large volume of hemorrhagic fluid and dilated gangrenous loops of ileum and sigmoid. A loop of ileum had encircled the base of sigmoid to form a knot resulting in gangrene of both the ileum and the sigmoid colon. Resection of gangrenous ileum and sigmoid colon with ileo-ileal and colorectal anastomosis with a temporary diversion colostomy was done.