Pancreaticobiliary maljunction diagnosed long after laparotomy in the neonatal period for annular pancreas: report of a case

Background Although annular pancreas concurrent with pancreaticobiliary maljunction has rarely been reported, some reports have pointed out a possibility that both anomalies have a common pathogenesis in pancreatic development. We herein report a case with pancreaticobiliary maljunction diagnosed long after surgical treatment for annular pancreas.