Abdominoperineal resection
(重定向自Abdominal perineal resection)

An abdominoperineal resection, formally known as abdominoperineal resection of the rectum and abdominoperineal excision of the rectum or simply abdominoperineal excision, or the Miles operation is a surgery for rectal cancer or anal cancer. It is frequently abbreviated as AP resection, APR and APER.