较低位的直肠后或直肠旁肿瘤确定诊断以后，手术切除入路确定较困难。笔者曾对１例成人直肠后肿瘤患者经骶尾部入路切除肿瘤，感到操作较简单，过程顺利，术后恢复好，无并发症。报告如下。患者女性，５６岁。因肛门坠胀、里急后重４个月入院。直肠指诊：距肛缘５．０ｃｍ... After confirming the diagnosis of lower rectal or rectal tumors, it is more difficult to determine the surgical approach. The author once treated a patient with rectal cancer in the adult via a sacrococcygeal approach to remove the tumor. He felt that the operation was relatively simple, the procedure was smooth, and the postoperative recovery was good without complications. The report is as follows. Female patient, 56 years old. Due to anal bulge and tenesmus, he was admitted to the hospital four months later. Rectal examination: 5.0cm from the anal verge