西德蒂宾根大学医学院放射医学研究所自1976年至1983年对67例直肠癌术后局部复发进行了放射治疗。男38例,女29例,年龄大多在55岁以上。原发肿瘤均在直肠,距肛门皮缘3～16cm,以T_3(46例)、T_4(12例)的晚期肿瘤为多,一半(31例)病人在初次治疗时已有区域淋巴结转移。52例作直肠切除,15例作保留肛门的节段切除,术后均未作化疗或放疗。40%是在术后一年内局部复发,只有9%在术后四年后复发。腹会阴切口直肠切除术后的大多(91%)病人局部复发位于骶前间隙,有的有邻近结构(肌肉、骨骼、膀胱等)的浸润。节段 The Institute of Radiation Medicine at the Medical University of West Tübingen was used to perform radiotherapy for local recurrence of rectal cancer after surgery from 1976 to 1983. There are 38 males and 29 females, most of whom are over 55 years of age. The primary tumors were located in the rectum. The distance from the anal margin was 3-16cm. T3 (46 cases) and T4 (12 cases) were the most advanced tumors. Half (31 cases) had regional lymph node metastasis at the initial treatment. Fifty-two patients underwent rectal resection and fifteen patients underwent resection of the retained anus. No postoperative chemotherapy or radiotherapy was performed. 40% recurred within one year after surgery, and only 9% recurred after four years. Most of the patients (91%) who underwent perineal incision rectal resection were located in the presacral space, and some had infiltration of adjacent structures (muscle, bone, bladder, etc.). Segments