大肠癌是常见的恶性肿瘤之一,而回盲部癌的发病率占大肠癌的15%。回盲部癌常易误诊,误诊率高达72.6%,我院1990～1995年收治大肠癌286例,其中回盲部癌、阑尾类癌73例,而73例中有13例误诊为急性阑尾炎,现将其临床资料及误诊原因分析报告如下。1 临床资料 Colorectal cancer is one of the common malignant tumors, and the incidence of ileocecal cancer accounts for 15% of colorectal cancer. The ileocecal cancer is often misdiagnosed and the rate of misdiagnosis is as high as 72.6%. In our hospital from 1990 to 1995, 286 cases of colorectal cancer were treated, including ileocecal cancer and appendix carcinoid in 73 cases, and 13 of 73 cases were misdiagnosed as acute appendicitis. The clinical data and misdiagnosis cause analysis are reported below. 1 Clinical data