胰腺囊性腺癌临床少见 ,仅占胰腺原发恶性肿瘤的1% ,误诊率较高。我院 1993～ 1998年共收治胰腺囊性腺癌 8例 ,其中 5例误诊 ,误诊率 6 2 .5 %。现就其误诊原因做一分析。1　临床资料1.1　一般资料　本组男 3例 ,女 2例 ;年龄 4 8～ 70岁 ,平均 5 2 .4岁。病史最长 3年 ,最短 1 Pancreatic cystic adenocarcinoma is rare in clinical practice, accounting for only 1% of primary malignant tumors of the pancreas. The rate of misdiagnosis is high. In our hospital from 1993 to 1998, there were 8 cases of pancreatic cystic adenocarcinoma, of which 5 cases were misdiagnosed and the misdiagnosis rate was 6 2.5%. An analysis of the reasons for misdiagnosis is given. 1 clinical data 1.1 General Information The group of 3 males and 2 females; age 4 8 to 70 years, an average of 52. 4 years old. Medical history up to 3 years, shortest 1