Endoscopic diagnosis of pancreaticobiliary maljunction

Figure 1 Magnetic resonance cholangiopancreatography showing pancreaticobiliary maljunction with biliary dilatation (congenital choledochal cyst).

Figure 2 Endoscopic retrograde cholangiopancreatographyshowing pancreaticobiliary maljunction without biliary dilatation.

Figure 3 Endoscopic retrograde cholangiopancreatography of a pancreaticobiliary maljunction patient. A: Showing a long common channel; B: The communication between pancreatic and bile ducts was maintained despite contraction of the sphincter.

Figure 4 Endoscopic retrograde cholangiopancreatography of a patient with high confluence of pancreaticobiliary ducts. A: A common channel of 9 mm in length; B: The communication between pancreatic and bile ducts was destroyed by sphincter contraction.

Figure 5 Endoscopic ultrasonography of a pancreaticobiliary maljunction patient. A:The confluence of pancreatic duct and bile duct in the proximal portion of the duodenal wall; B: thickness of inner low echoic layer of the gallbladder. BD: bile duct; PD: pancreatic duct; C: common channel.

Figure 6 Ultrasonography of a congenital choledochal cyst patient with bile duct cancer in the dilated bile duct. A: Endoscopic ultrasonography; B: Intraductal ultrasonography.