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FIGURE 1. Cholangiograms through percutaneous transhepatic drainage catheter (case 2). A, Anteroposterior projection: the progression of cancer is predominant in the right anterior and posterior bile ducts. B, Right anterior oblique + cranial oblique projection: the left medial and lateral branches are also involved. The number indicates the segmental bile duct according to Couinaud's hepatic segment. Arrowheads indicate 2 biliary drainage catheters.
