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Medical Definition of Vater's ampulla
1. The dilatation formed by junction of the common bile duct and the pancreatic ducts proximal to their opening into the lumen of the duodenum. (12 Dec 1998)
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1. The dilatation formed by junction of the common bile duct and the pancreatic ducts proximal to their opening into the lumen of the duodenum. (12 Dec 1998)