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1 概 述Oddi括约肌 (Sphincter of Oddi,SO)位于胰胆管进入十二指肠部位 ,其功能在于调节胆汁和胰液进入十二指肠的流量及防止十二指肠内容物向胰胆系统的返流。功能异常意指无明确的病因及显著的病理解剖异常情况下的功能失调。通常情况下所谓 SO功能异常 (Sphincter of O
1 Overview Sphincter of Oddi (SO) is located in the pancreaticobiliary ducts enter the duodenal site, whose function is to regulate the flow of bile and pancreatic juice into the duodenum and to prevent reflux of duodenal contents to the pancreaticobiliary system . Abnormal function means no specific cause and significant dysfunction of the pathological anatomy. Under normal circumstances the so-called SO dysfunction (Sphincter of O