Cholangiocarcinoma, CCA Anatomy:  1.Intrahepatic- Proximal to the bifurcation of the right and left hepatic ducts, 10% 2.Extrahepatic a)Perihilar- Confluence+proximal to insertion of cystic duct into CBD, 50% b)Distal extrahepatic- Distal to insertion of cystic duct into CBD to ampulla of Vater(not included), 40%→ pancreaticojejunostomy, PD  Bismuth-Corlette classification for perihilar tumors Type I below confluence en […]