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Definition of Pyloric stenosis

Pyloric stenosis: Narrowing (stenosis) of the outlet of the stomach so that food cannot pass easily from it into the duodenum. Pyloric stenosis results in feeding problems and projectile vomiting in infants. The obstruction can be corrected with a relatively simple surgical procedure.

Source: MedTerms™ Medical Dictionary
Last Editorial Review: 3/19/2012

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