Endoscopy (Esophagogastroduodenscopy)

An endoscopy is used to look for any mechanical obstructions of the oesophagus, stomach, or duodenum (i.e., the first section of the small intestine). A long, thin, flexible tube with a small light and camera at the end is carefully guided into the mouth, through the throat, esophagus, stomach, and into the duodenum. The video image from the endoscope allows the physician to examine the organs for any abnormalities, and if necessary, instruments can be passed through the endoscope in order to take tissue samples for further testing.