胰腺癌为常见的恶性肿瘤 ,发病率仍处于上升阶段 ,病死率居高不下。其主要原因是由于胰腺位于腹后壁 ,病变不易被发现 ,一经发现多为后期 ,手术切除率低。胰腺癌手术难度大 ,术后并发症严重 ,且对化疗、放疗均不敏感 ,因而预后差。近年来随着分子生物学技术的应用 ,提出癌症的 Pancreatic cancer is a common malignancy, the incidence is still in the ascendant stage, high mortality. The main reason is because the pancreas is located in the ventral posterior wall, the lesion is not easy to find, once found mostly late, surgical resection rate is low. Pancreatic cancer surgery difficult, serious postoperative complications, and chemotherapy, radiotherapy are not sensitive, and thus poor prognosis. In recent years, with the application of molecular biology techniques, proposed cancer