本文对经纤维结肠镜检出大肠息肉148例分析,表明小于1cm的息肉很少癌变,大于2cm的息肉则有33.3%癌变;息肉病和多发性息肉癌变率分别为30.8%和20%,远高于单发性息肉(5.6%);线毛状息肉癌变率最高,腺瘤性次之,炎性息肉未见癌变;变癌的息肉在内镜下往往具有质硬、结节样隆起、糜烂或白苔等特征。 This analysis of 148 cases of colorectal polyps detected by fiberoptic colonoscopy showed that polyps less than 1cm are rarely cancerous, 33.3% are cancerous in polyps larger than 2cm, and polyposis and polyposis are 30.8% and 20%, respectively. Higher than single-segment polyps (5.6%); line hairy polyps have the highest cancer rate, followed by adenomas, and inflammatory polyps do not show cancer; cancerous polyps tend to have hard, nodular uplifts at the endoscope. Erosion or white moss and other characteristics.