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Endoscopic retrograde cholangiopancreatography (ERCP) image of pancreaticobiliary maljunction (PBM): a patient with congenital bile duct dilatation (Kotani IV a type). a The pancreatic duct joins the biliary duct. b Pancreaticobiliary maljunction without bile duct dilatation (Fig 6a, with permission from Koyanagi K, Aoki T, editors. Pancreaticobiliary maljunction. Tokyo: Igaku Tosho Shuppan: 2002. p 25, Fig. 429)
