Indiana pouch uses which tissue segments to form the reservoir?

• A. Stomach and colon
• B. Large intestine and ileum
• C. Sigmoid colon and jejunum
• D. Urinary bladder and ileum

Answer: (B)

The Indiana pouch is built from detubularized segments of both the ileum and the colon to create a continent urinary reservoir. Using tissue from the large intestine together with ileal tissue provides enough reservoir volume and good wall compliance to store urine at low pressure, while still allowing a catheterizable channel to the skin for intermittent drainage. This combination also supports the mucosal environment that helps form a functional, continent reservoir. Other tissue options like stomach, jejunum alone, or using the bladder for the reservoir don’t align with the surgical approach and functional goals of the Indiana pouch.