背景:在治疗肝门部胆管癌时为了获得无瘤手术切缘和更好的长期生存结果常需行联合肝外胆管和肝段切除术,但是若局部广泛侵犯主要血管则常常是不可切除的最主要原因之一,为了达到外科切缘阴性则在技术上要求血管切除和重建。由于肝门部胆管癌BismuthⅢB型常常需要扩大左半肝 Background: In the treatment of hilar cholangiocarcinoma, extrahepatic bile duct and hepatic segmentectomy are often required in order to obtain margins of tumor-free surgery and better long-term survival results. However, it is often unresectable to extensively invade the major blood vessels. One of the main reasons for this is the technically required vascular resection and reconstruction in order to achieve a negative surgical margin. Due to hilar cholangiocarcinoma Bismuth Ⅲ B type often need to expand the left hemiliver