What is an upper endoscopy?
An upper endoscopy (also known as an esophagogastroduodenoscopy or EGD) is a procedure that helps a gastroenterologist to visualize your upper digestive tract to diagnose and treat problems in the esophagus, stomach, and duodenum (the first part of the small intestine).
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Because upper endoscopies are minimally invasive and relatively quick procedures, they can provide essential information to help diagnose and treat medical conditions that may otherwise be difficult to identify. It is more accurate than an x-ray to detect inflammation, ulcers, and tumors.