ileoanal reservoir, a pouch for the collection of feces, created surgically in a two-stage operation. The first stage involves removal of the rectal mucosa, an abdominal colectomy, and construction of a fecal reservoir from loops of ileum. A temporary ileostomy is created at this time to allow the ileoanal reservoir to heal. Several months later the patient returns for closure of the ileostomy so that discharge of feces through the anus is possible.
