The dilation within the major duodenal papilla, the duodenal end of the drainage systems of the pancreatic and common bile ducts. This normally receives both the common bile duct and the main pancreatic duct.
- A. Vater:
Dissertatio anatomica quo novum bilis diceticulum circa orificum ductur choledochi ut et valvulosam colli vesicae felleae constructionem ad disceptandum proponit.
Wittenbergae, lit. Gerdesianus, 1720.
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