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目的分析早期结直肠癌的白光内镜下特点。方法对北京军区总医院消化内镜中心2010年1月-2015年9月经结肠镜检查发现并经病理证实的早期结直肠癌病例进行回顾性研究,分析其白光内镜下特点。结果共发现早期结直肠癌319处(292例患者),其中,269例为单发,23例为多原发癌,21例为同时多原发癌,2例为异时多原发癌。早期结直肠癌中228处(71.5%)分布在乙状结肠及直肠。癌灶直径0.4~13 cm,以1.1~2.0 cm最多。隆起型病变(229处,71.8%)明显多于平坦型病变(90处,28.2%),以0-Ⅰs型最多见。71.9%的0-Ⅰp病变蒂部膨大,26.0%病灶表面可见边界清晰的凹陷,19.4%有基底白斑。259处为黏膜内癌,60处为黏膜下癌。结论早期结直肠癌以左半结肠为主,0-Ⅰs型病变多见。表面边界清晰的凹陷、基底白斑及有蒂息肉蒂部膨大是早期结直肠癌白光内镜下常见的形态特点。
Objective To analyze the characteristics of white light endoscopy in early colorectal cancer. Methods A retrospective study was carried out on the early colorectal cancer patients confirmed by colonoscopy and pathologically confirmed by the digestive endoscopy center of General Hospital of Beijing Military Command from January 2010 to September 2015. The characteristics of white endoscopy were analyzed. Results A total of 319 primary colorectal cancers (292 patients) were found. Among them, 269 were single tumors, 23 were multiple primary cancers, 21 were multiple primary carcinomas and 2 were heterogeneous multiple primary carcinomas. 228 of the early colorectal cancer (71.5%) were located in the sigmoid colon and rectum. Focal diameter of 0.4 ~ 13 cm, with 1.1 ~ 2.0 cm up. The bulging lesions (229, 71.8%) were significantly more than the flat lesions (90, 28.2%), the most common type 0-Ⅰs. 71.9% of 0-Ⅰp pedicle dilated pedicle, 26.0% lesions showed a clear border depression, 19.4% of the basal leukoplakia. 259 Department of mucosal cancer, 60 submucosal cancer. Conclusion The early stage of colorectal cancer is dominated by the left colon, and the 0-Ⅰs type is more common. Clear surface demarcation, basal leukoplakia and pedunculated polyp pedicle enlargement of early colorectal cancer white light endoscopic common morphological characteristics.