胰腺癌是一种较常见的消化道恶性肿瘤,占全身肿瘤的1%~3%,占消化道肿瘤的8%~10%[1]。由于胰腺的特殊解剖位置、生理特点及胰腺癌症状的非特异性,尽管近年来实验室检测、影像学技术和内镜技术取得了巨大的进展,胰腺癌的早期诊断仍很困难。据统计,80%的胰腺癌患者诊断时已属于局 Pancreatic cancer is a common gastrointestinal cancer, accounting for 1% to 3% of systemic tumors, accounting for 8% to 10% of gastrointestinal tumors [1]. Due to the special anatomical location of the pancreas, the physiological characteristics and the nonspecificity of the symptoms of pancreatic cancer, despite the great advances in laboratory testing, imaging and endoscopic technologies in recent years, the early diagnosis of pancreatic cancer remains difficult. According to statistics, 80% of patients with pancreatic cancer have been diagnosed at the Board