Copyright ©The Author(s) 2020.
World J Gastroenterol. Aug 7, 2020; 26(29): 4261-4271
Published online Aug 7, 2020. doi: 10.3748/wjg.v26.i29.4261
Table 1 Liver cancer study group of Japan tumour node metastases staging for intrahepatic cholangiocarcinoma
TNumber of tumorsSolitary
Size of tumor2 cm or less
Negative invasionPortal vein, hepatic vein, serous membrane
NN0No metastasis to nodes
N1Metastasis to nodes
MM0No distant metastasis
M1Positive distant metastasis
Table 2 Bismuth-Corlette classification system for perihilar cholangiocarcinoma
IBelow the confluence of the left and right hepatic ducts
IIReaching confluence but not involving left or right hepatics ducts
IIIOccluding common hepatic duct and either right (A) or left (B) hepatic duct
IVMulticentric or bilateral intrahepatic segmental involvement; or involving confluence and both right and left hepatics ducts
Table 3 Memorial Sloan Kettering T stage for hilar cholangiocarcinoma
T1Tumor involving biliary confluence and/or unilateral extension to second-order biliary tracts
T2T1 and/or ipsilateral portal vein involvement and/or ipsilateral hepatic lobar atrophy
T3Tumor involving biliary confluence, the biliary extension to second-order biliary tracts; or unilateral extension to second-order biliary tracts with contralateral portal vein involvement; or unilateral extension to second-order radicals with contralateral hepatic lobar atrophy; or main or bilateral portal vein involvement