Background: Local excision (LE) is accepted as palliative treatment for rectal cancer.Advantages of LE include low morbidity, early recovery and preservation of the anus.

• 摘要背景：局部切除术已被接受于直肠肿瘤以症状治疗为原则之支持疗法，其优点是：并发症少、恢复快及可保存肛门。