Preservation of the anorectum.
D000230:Adenocarcinoma / Q000601:surgery; D000236:Adenoma / Q000601:surgery; D001003:Anal Canal / Q000033:anatomy & histology / Q000601:surgery*; D000818:Animals; D001005:Anus Neoplasms / Q000601:surgery; D002294:Carcinoma, Squamous Cell / Q000601:surgery; D002295:Carcinoma, Transitional Cell / Q000601:surgery; D003093:Colitis, Ulcerative / Q000601:surgery; D003424:Crohn Disease / Q000601:surgery; D004285:Dogs; D005260:Female; D006801:Humans; D007417:Intestinal Polyps / Q000235:genetics; D008545:Melanoma / Q000601:surgery; D008722:Methods; D008875:Middle Aged; D012004:Rectal Neoplasms / Q000601:surgery; D012005:Rectal Prolapse / Q000601:surgery; D012006:Rectovaginal Fistula / Q000601:surgery; D012007:Rectum / Q000033:anatomy & histology / Q000601:surgery*