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肝内胆管小结石引起胆汁淤积


肝内胆管小结石引起的肝内阻塞,能够引起局部胆汁淤积,但由于大量未阻塞部分可清除血中胆红素,血清胆红素水平不升高。但任何水平的胆道阻塞时,血清碱性磷酸酶都升高。
Here is an example of intrahepatic obstruction with a small stone in an intrahepatic bile duct. This could produce a localized cholestasis, but the serum bilirubin would not be increased, because there is plenty of non-obstructed liver to clear the bilirubin from the blood. However, the serum alkaline phosphatase is increased with biliary tract obstruction at any level.

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