Abdominoperineal resection.
D000005:Abdomen / Q000601:surgery*; D003106:Colon / Q000601:surgery; D012809:Colon, Sigmoid / Q000601:surgery; D006801:Humans; D008638:Mesenteric Arteries / Q000601:surgery; D008722:Methods; D009362:Neoplasm Metastasis; D010502:Perineum / Q000601:surgery*; D012004:Rectal Neoplasms / Q000601:surgery*; D012007:Rectum / Q000601:surgery