结肠直肠癌作为最常见的消化道恶性肿瘤之一,其治疗方案日臻完善,现以根治性手术为中心,已形成围手术期辅助放、化疗,基因、分子生物学水平的个体化精准治疗规范。早期肿瘤因瘤体未累及浆膜,其定位有一定难度。腹腔镜结肠直肠手术中,因术者缺乏手触感,对于体积较小、未突破浆膜的肿瘤定位难以掌控,早期结肠肿瘤术中定位尤为耗 Colorectal cancer as one of the most common gastrointestinal malignancies, its treatment programs are getting better, now radical surgery as the center, has formed a perioperative auxiliary radiotherapy, chemotherapy, genetics, molecular biology level of precision treatment of individual specifications . Early tumor because the tumor does not involve the serosa, the positioning of a certain degree of difficulty. Laparoscopic colorectal surgery, due to the lack of hand touch, for smaller, not break the serosa tumor positioning difficult to control, early colon tumor positioning is particularly intraoperative