Fig. 2From: Locally advanced gallbladder cancer treated with effective chemotherapy and subsequent curative resection: a case reportEndoscopic retrograde cholangiopancreatography revealed displacement of the upper bile duct. Intraductal ultrasonography showed irregular wall thickening and disappearance of the wall structure in bile ducts from the B4 branch to distal B2 and B3. Percutaneous transhepatic biliary biopsy revealed a poorly differentiated carcinoma.Back to article page