关键词：大肠息肉；大肠癌；大肠镜检查
【摘要】 目的 探讨大肠良恶性息肉的分布、大小、形态和病理特征以及息肉恶变过程中的相关因素。方法 对电子结肠镜检出的大肠良恶性息肉患者的临床表现及内镜、病理资料进行分析。结果 大肠息肉的检出率为10.66%，其中腺瘤性息肉占47.16%。主要的临床表现为便血。炎性息肉以≤1.0cm的为最多，腺瘤性息肉则大小不等，幼年性息肉以1.1～1.9cm的最多，同时伴肠癌者息肉以<1.0cm为主。本组息肉0.6～1.0cm者恶变率3.51%，1.1～1.9cm者恶变率为12.90%，≥2.0cm者恶变率27.78%，息肉恶变以山田Ⅱ型为主。结论 腺瘤体积大，绒毛状结构者易恶变；大肠腺瘤性息肉常与大肠癌并存；大肠镜检查应尽量检查全大肠，不能满足于远端大肠病变的诊断；息肉不论大小应尽可能予以切除。
Benign and malignant colorectalpolyps:clinical,endoscopic and pathologic features
WU Zigang,WU Ziguang,QUAN Huabin, et al.
Department of Gastroenterology,Zhongshan City People's Hospital,Zhongshan 528403
【Abstract】 Objective Thecorrelation of benign and malignant colorectal polyps with their location,size,morphologyand histopathology was investigated.Methods The documents of 193patients with bowel polyps detected by video colonoscope in past 4 years wereretrospectively reviewed and analysed.Results Polyps were found mainlyin rectum and sigmoid though they may arise throughout the colon.Hematochezia(67.3%) wasthe most common clinical symptom or sign.Polyps in this series varied in size according totheir pathology.Most of the juvenile type sized 1.1～1.9cm ......
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