According to Bismuth classification, type IV Cholangiocarcinoma involves
Correct Answer: Bifurcation and bilateral secondary intrahepatic ducts
Description: Bismuth - corlette classification of Hilar Cholangiocarcinoma Type I- Tumor confined to hepatic duct, not involving the main biliary confluence Type II- Tumor involving the main biliary confluence but not extending to the right or left ducts Type IIIa- Tumor extending upto the right secondary biliary confluence Type IIIb- Tumor extending upto the left secondary biliary confluence Type IV - Tumor extending bilaterally to the secondary biliary confluence Ref : Sabiston 20th edition Pgno :1514-1518
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Anatomy
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