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Definition of Endoscopy, upper

Endoscopy, upper: A procedure that enables the examiner (usually a gastroenterologist) to examine the esophagus, the stomach, and the first portion of small bowel (duodenum) by using a thin, flexible tube that can be looked through or seen through on a TV monitor. Also known as esophagogastroduodenoscopy (EGD).

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=12539
Last Editorial Review: 3/19/2012

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