Intrahepatic cholangiocarcinoma diagnosed via endoscopic retrograde cholangiopancreatography with a short double-balloon enteroscope

Figure 3 Endoscopic retrograde cholangiopancreatography. A: A guide wire was inserted deeply into the main pancreatic duct to perform the pre-cutting; B: After the pre-cutting, selective biliary cannulation was achieved; C: Cholangiography revealed a focal stricture in the branch of the right intrahepatic duct (arrow); D: A guide wire was passed through the biliary stricture; E: The brush cytological examination was carried out at the stricture; F: The placement of nasobiliary drainage tube was performed to collect the bile for cytology.