Perineal exposure of the rectum.
D003125:Colostomy; D005260:Female; D006801:Humans; D007417:Intestinal Polyps / Q000601:surgery; D008297:Male; D008722:Methods; D010502:Perineum / Q000601:surgery; D011468:Prostatectomy; D012004:Rectal Neoplasms / Q000601:surgery; D012005:Rectal Prolapse / Q000601:surgery; D012007:Rectum / Q000601:surgery*