1977年8月至1981年12月,我院共作纤维肠镜检查1,534例次,插入回盲部的成功率达97.8％,其中诊断进展型大肠癌(包括直肠癌和结肠癌)106例,早期大肠癌3例。本文对此109例大肠癌作一分析,并结合文献对纤维结肠镜诊断大肠癌的价值、大肠癌在大肠各解剖节段的分布以及大肠癌的纤维结肠镜下分型作简要讨论。临床资料 109例大肠癌中,男73例,女36例,男女比为2.03:1。年龄从20～70岁,平均为 From August 1977 to December 1981, 1,534 cases of fiber colonoscopy were performed in our hospital. The success rate of insertion into the ileocecal region was 97.8%, of which 106 cases developed colorectal cancer (including rectal cancer and colon cancer). Early colorectal cancer in 3 cases. This article analyzes 109 cases of colorectal cancer and discusses the value of colonoscopy in the diagnosis of colorectal cancer, the distribution of colorectal cancer in various anatomic segments of the large intestine, and the classification of colorectal cancer by colonoscopy. Clinical data 109 cases of colorectal cancer, 73 males and 36 females, male to female ratio was 2.03:1. Age from 20 to 70 years old, with an average of