Fig. 1From: Overcoming tight perihilar malignant biliary obstructions during percutaneous biliary intervention in Nigerian patients: case reportsIntra-procedure fluoroscopic images showing anterograde cholangiogram with pigtail catheter (yellow arrow) in the central biliary tree from a left hepatic approach (green arrow). A 22-G needle (blue arrow) was used to target the distal common bile duct (red arrow), with opacification and contrast egress into the duodenum (purple arrow)Back to article page