胰腺囊腺癌较少见,有时与胰腺假性囊肿难以鉴别,我们曾误诊2例,现报告如下。例1 女,48岁。中上腹阵发性疼痛半天,伴恶心、呕吐。曾有3年“胃病史”。体检:中上腹扪及直径8cm 圆形肿块,活动,余无其他阳性体征。血象、肝功能、血尿淀粉酶均正常。B 超示剑下巨大液性包块。CT 表现为两胸腔少量积液,中等量腹水,胰体尾部9.0cm×8.4cm 薄壁分叶状囊性肿块,无壁结节,有一细 Pancreatic cystadenocarcinoma is rare and sometimes difficult to distinguish from pancreatic pseudocysts. We have misdiagnosed 2 cases and the report is as follows. Example 1 Female, 48 years old. Paroxysmal pain in the upper half of the abdomen, with nausea and vomiting. There have been 3 years “stomach history”. Physical examination: the upper abdomen and 8cm diameter round bumps, activities, and other positive signs. Blood, liver function, and hematuria were all normal. B Super shows the huge liquid mass under the sword. CT showed a small amount of pleural effusion in the chest, moderate volume of ascites, pancreatic body tail 9.0cm × 8.4cm thin-walled lobulated cystic mass, no wall nodules, a thin