Kock pouch comes from what portion of the gastrointestinal tract?

• A. Jejunum
• B. Cecum
• C. Colon
• D. Ileum

Answer: (D)

A Kock pouch is a continent reservoir created from a section of the ileum. A segment of ileum is isolated and fashioned into a storage pouch, with a nipple valve built in to prevent leakage and a stoma through which the patient can catheterize to empty the pouch. The ileum is chosen because its wall is thin and compliant, allowing a roomy reservoir in a relatively short segment while maintaining good blood supply and the ability to form a reliable continence mechanism. Using other parts of the bowel, like the colon or jejunum, would lead to more mucus production and potential continence issues, and the cecum isn’t suited for this type of continent ileostomy. So the pouch originates from the ileum.