我们两院 1980～ 2 0 0 1年共收治青年期大肠癌 2 6例 ,其中误诊 11例 ,误诊率 42 3 %。现将误诊情况分析如下。1　临床资料1 1　一般资料　本组男 7例 ,女 4例 ;年龄 2 6～ 3 5岁 ,平均 3 1岁。病变部位 :直肠 6例 ,乙状结肠 2例 ,升结肠、结肠脾区和肝曲结肠各 1例。1 2　临 Between 1980 and 2001, we treated 26 cases of adolescent colorectal cancer in our hospital, of which 11 cases were misdiagnosed, with a misdiagnosis rate of 42.3%. The misdiagnosis situation is now analyzed as follows. 1 Clinical data 1 1 General Information The group of 7 males and 4 females; aged 26 ~ 35 years, mean 31 years. Lesions: 6 cases of rectum, 2 cases of sigmoid colon, 1 case of ascending colon, colon and splenic area and hepatic tract colon. 1 2 Pro