A Case of Choledochocele

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  • 総胆管瘤の1例
  • 症例報告 総胆管瘤の1例
  • ショウレイ ホウコク ソウタンカンリュウ ノ 1レイ

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Abstract

We report a rare case of choledochocele. A 7-year-old boy who had abdominal pain and vomiting was admitted to our hospital for acute pancreatitis. Ultrasonography and MRCP showed a dilatation of the common bile duct and protein plug in the common channel. We diagnosed a congenital choledochal cyst (I-c). Intraoperative cholangiography but cholangioscope showed no protein plug but atresia of the opening in choledochocele. Therefore we performed hepatocholangiojejunostomy and transduodenal sphincteroplasty. Postoperative diagnosis was Todani type IV-B. Kamisawa et al. classified choledochocele into three groups by the flow of the bile and pancreatic juice. The form of type A was the cystic dilatation of the common channel located in the duodenal wall. The clinical condition for type A was the regurgitation in the pancreatic duct and common bile duct and looked like one in the anomalous arrangement of the pancreaticobiliary ducts. Accordingly it was necessary to check the opening and the configuration of the orifice of the main papilla.

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