Upper endoscopy (also called esophagogastroduodenoscopy or EGD) is used to look at the esophagus, stomach and duodenum (the first part of the small intestine). The endoscope is put in through the mouth, and then passes through the esophagus, into the stomach, and then into the first part of the small intestine.
How to check duodenum ?
Written by Kahul
