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An upper gastrointestinal endoscopy is a way for your doctor to look at
the inside lining of your esophagus, stomach, and the first part of your small
intestine (called the duodenum). The doctor uses a thin, flexible viewing
instrument called an endoscope. With the endoscope, your doctor can check to
see if you have any ulcers, inflammation, tumors, infection, or
This test is also known as an esophagogastroduodenoscopy,
Current as of:
June 4, 2014
E. Gregory Thompson, MD - Internal Medicine & Jerome B. Simon, MD, FRCPC, FACP - Gastroenterology
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