an internal pouch is created from a section of small intestine and attached to the anal sphincter muscle.

a procedure in which the surgeon forms a pouch out of tissue from the ileum and connects it directly to the anal canal

joining the ileum to the anus following removal of the colon and rectum

surgical procedure in which the rectum is joined to the ileum after removal of the colon

a surgical operation for ulcerative colitis where, after total colectomy, an internal pouch is made from the ileum and attached to the anus, thus preserving continence and allowing evacuation in the normal manner. (This operation is also known as the 'pouch' or Parks operation) .

an operation to remove the colon and inner lining of the rectum, but leave the outer muscle of the rectum. The bottom end of the small intestine (ileum) is pulled through the remaining rectum and joined to the anus, allowing stool to pass normally.