近年来,为了提高直肠癌的疗效,多数主张在手术前后采用综合治疗。本文就我科术前放疗与手术综合治疗的72例和单纯手术组的42例进行了疗效对比观察,并将情况进行综合分析。直肠癌放疗的病理形态学研究证明,肿瘤细胞可产生退变及坏死,纤维组织增生,癌周浸润多消失,淋巴管闭塞等反应,阻止了淋巴道转移,因此,术前放疗在一定程度上可以控 In recent years, in order to improve the efficacy of rectal cancer, most advocate the use of comprehensive treatment before and after surgery. In this article, the curative effect of 72 cases of preoperative radiotherapy combined with surgery and 42 cases of surgery alone were compared and the situation was analyzed comprehensively. The pathomorphological study of rectal cancer radiotherapy demonstrated that tumor cells can produce degeneration and necrosis, fibrous tissue hyperplasia, more disappearance of perinuclear infiltration, lymphatic obstruction and other reactions, and prevent lymphatic metastasis. Therefore, preoperative radiotherapy to a certain extent Can control