胰腺癌是一种致命的疾病,其发病率和病死率几乎一样。在西方国家5年存活率为4%,是所有癌症类型中最低的[1]。在中国胰腺癌为恶性肿瘤死亡原因的第六位,总累积5年存活率为1%~3%[2-3]。中国胰腺癌患病危险因素类似于西方国家[2-3]。通过影像学偶然发现的胰腺癌生存期似乎有所增加[4-6]。最近基因测序证据[7-8]表明,胰腺癌从基因癌变开始到转移期胰腺癌需要15年时 Pancreatic cancer is a deadly disease with almost the same morbidity and mortality. The 5-year survival rate in Western countries is 4%, the lowest of all cancer types [1]. In China, pancreatic cancer is the sixth leading cause of cancer deaths, with a cumulative 5-year survival rate of 1% to 3% [2-3]. The risk factors for pancreatic cancer in China are similar to western countries [2-3]. Survival of pancreatic cancer appears to have increased somewhat by imaging [4-6]. Recent genetic sequencing evidence [7-8] showed that pancreatic cancer from the onset of cancer to metastatic pancreatic cancer needs 15 years