A Kock pouch (continent ileostomy) removes the colon and rectum and creates an internal reservoir from the small intestine. This procedure creates an opening in the abdominal wall (called a stoma) without an ostomy bag. To drain the pouch, the patient inserts a catheter through the valve into the internal reservoir.
To visualize what a Kock pouch looks like, please see Figure 8 below.
This is not commonly done but it is sometimes offered to Crohn’s disease patients who do not do well with a J-pouch due to significant perianal disease.
Written by Tina Aswani Omprakash. Medically reviewed and validated by Jordan Axelrad, MD, MPH. These webpages are funded by a grant from The Leona M. and Harry B. Helmsley Charitable Trust.