Fig. 3From: Migration of non-absorbable polymer clips in hepato-biliary-pancreatic surgery: a report of four casesPreoperative findings of choledocholithiasis in "Case 2". A CT image shows a mass located in the upper bile duct. B, C MRCP imaging shows a mass located in the upper bile duct. D, E ERCP image shows a filling defect in the upper bile duct, which suggests bile duct cancer. F Intraductal ultrasonography image reveals an intraductal tumorBack to article page