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直肠和排尿、生殖、肛门器官的关系密切,过多切除会影响术后生存质量(quazlityoflife ,QOL) ,在保证癌的根治情况下应尽量采用最小范围切除术(minimanyinvasivesurgery)。因此,肿瘤直径在1cm以下的腺瘤或M Cca(mucosallayer cancer)常行内窥镜下黏膜切除;较大或SM Ca(submucosa
Rectal and urinary, reproductive, anal organs are closely related, too much resection will affect postoperative quality of life (QOL), in order to ensure the cure of cancer should minimize the use of minimal scope resection (minimanyinvasivesurgery). Therefore, the tumor diameter is less than 1cm in the adenoma or M Cca (mucosal layer cancer) routine endoscopic mucosal resection; larger or SM Ca (submucosa