有选择性地对于直肠癌行局部切除的研究逐渐增多。早期直肠癌大多分化良好或中度分化,转移和扩散率较低,如果行局部切除,其术后并发症的发生率和死亡率比剖腹手术切除直肠小得多。作者使用经肛门内窥镜显微外科的技术(TEM)行早期直肠癌的局部切除收到良好效果。1980年开始研究此项技术,1983年即用于临床。TEM 所用的直肠镜直径40mm,长度为12cm和20cm 两种。镜筒的近端接上放大镜并使之封闭,吹 The selective study of local resection of rectal cancer has gradually increased. Most early rectal cancers have well-differentiated or moderately differentiated metastases. The rate of metastasis and diffusivity is low. If local resection is performed, the incidence and mortality of postoperative complications are much smaller than those of rectal surgery. The authors used the technique of transanal endoscopic microsurgery (TEM) to achieve good results for local resection of early colorectal cancer. The technique was started in 1980 and used clinically in 1983. The TEM uses a rectal mirror with a diameter of 40mm and lengths of 12cm and 20cm. Attach the magnifying glass to the proximal end of the barrel and close it.