关键词: oddi括约肌, 隐匿性胰胆返流, 共同通道, 胆道疾病, 胆汁淀粉酶

Abstract: 【Abstract】 Occult pancreaticobiliary reflux（OPR/OPBR）is defined as pancreaticobiliary reflux （PBR）occurs in individuals with a normal pancreaticobiliary junction （NPBJ）. Studies have shown that many diseases of biliary system, especially gallbladder cancer, are closely associated with OPR. However, these cases present no clinical symptoms and is also impossible to accurately detected by using conventional imaging examinations. Understanding and further research of OPR have great importance of significance for clinical guiding. In this article, we review the progress in research of OPR.

Key words: Bile amylase, Sphincter of oddi, Occult pancreaticobiliary reflux, Common channel, Biliary tract diseases