Comparison of the clinical results of surgical resection for extrahepatic cholangiocarcinomas: Hilar cholangiocarcinoma and mid-to-distal cholangiocarcinoma.

Backgrounds/aims: Hilar cholangiocarcinomas (HLC) are known to have worse prognoses than mid-to-distal cholangiocarcinomas (CBDC). We analyzed the clinical results of surgical resections for extrahepatic cholangiocarcinomas to validate the differences in the prognoses of HLC and CBDC.

Methods: Two hundred and eighty-one patients underwent curative surgical resections for extrahepatic cholangiocarcinomas at the Department of Surgery in the Korea Cancer Center Hospital.