胆管瘤可发生在胆管的任何部位，以肝门部发生率最高，约占胆管瘤的60％一80％。肝门部胆管癌又称中央型或高位胆管癌或Klatskin肿瘤。由于肝门部解剖结构复杂，该部位胆管癌发现时多已侵犯肝门部重要结构，故切除率较低。过去对不能切除的肝门部胆管癌无有效的根治办法，仅能 Cholangiocarcinoma can occur in any part of the bile duct, with the highest incidence of hepatic portal, accounting for about 60% to 80% of cholangiocarcinoma. Hilar cholangiocarcinoma is also known as central or high-grade cholangiocarcinoma or Klatskin tumor. Due to the complexity of the anatomy of the hilar, the site of cholangiocarcinoma has infringed on the important structure of the hilar organ at the time of its discovery, so the resection rate is low. In the past, there was no effective cure for unresectable hilar cholangiocarcinoma.