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警惕 胆结石会引起胆道出血

来源:华人健康网 | 发布时间:2010-09-19 09:22:54 | www.chinesejk.com

  胆结石引起胆道出血常常与在胆结石基础上合并感染有关。

  发病机制有三种类型:

  肝内弥漫性小胆管炎、胆管周围炎型。主要病变在汇管区,区域间小叶管与小叶间静脉相沟通发生多个小胆管血管瘘,广泛的小胆管出血汇集成胆道大出血。

  肝脓肿型。多发性胆源性肝脓肿汇集成大脓肿,脓液腐蚀肝动脉或门静脉分支,导致胆道出血。

  肝胆管溃疡型。急性梗阻性化脓性胆管炎时,梗阻上方肝胆管粘膜上皮脱落形成多个溃疡,溃疡可穿透邻近肝动脉、门静脉而发生胆道大出血。

(编辑:刘一鸣 )

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