最近几十年来胰腺癌发病率与日俱增,但切除率及术后5年存活率仍很不乐观。由于本症临床表现缺乏特异性与其他消化道疾病或胰腺疾病难于区别。并因缺乏敏感的和特异的肿瘤标记物,胰腺疾的早期诊断极为困难。近年来单克隆抗体诊断胰腺癌的方法不断获得改进,而肿瘤相关抗原醣抗原决定簇CA19-9是 The incidence of pancreatic cancer has increased over the past few decades, but the resection rate and postoperative 5-year survival rate are still not optimistic. Due to the lack of specific clinical manifestations of the disease, it is difficult to distinguish it from other digestive diseases or pancreatic diseases. Because of the lack of sensitive and specific tumor markers, early diagnosis of pancreatic diseases is extremely difficult. In recent years, monoclonal antibodies have been continuously improved in the diagnosis of pancreatic cancer, and the tumor-associated antigen carbohydrate antigenic determinant CA19-9 is