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esophagogastroduodenoscopy(EGD)
(ә-sof″ә-go-gas″tro-doo″od-ә-nosīkә-pe)
endoscopic examination of the interior of the esophagus, stomach, and initial portion of the duodenum, usually for diagnostic purposes with removal of samples of tissue for further study. In some cases it is done to locate
and remove a foreign object that has become lodged in the esophagus.

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