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Copyright ©The Author(s) 2015.
World J Gastrointest Endosc. Jul 10, 2015; 7(8): 806-813
Published online Jul 10, 2015. doi: 10.4253/wjge.v7.i8.806
Table 4 Bismuth classification of malignant hilar block[31]
Type I: Obstruction within 1 cm of bifurcation but confluence patent
Type II: Obstruction limited to confluence
Type III: Obstruction at confluence with proximal extension to right or left side
Type IV: Obstruction involving bilateral secondary or tertiary branches or multifocal strictures