胰腺癌的发病率近年来有明显增高趋势。到目前为止,尚无简单易行,特异性高的初筛普查的好方法。由于胰腺深藏于腹后壁,胰腺癌病人早期无明显临床症状,即使出现了症状,又多是特异性的, The incidence of pancreatic cancer has increased significantly in recent years. So far, there is no easy way to conduct a preliminary survey with high specificity. Because the pancreas is hidden deep in the abdominal wall, patients with pancreatic cancer do not have obvious clinical symptoms at an early stage. Even if symptoms appear, they are mostly specific.