Gastroscopy
Gastroscopy : Gastroscopy is the examination of the internal surface of the stomach through a special instrument (gastroscope) that is passed through the mouth and down the esophagus. The gastroscope may be either a straight tube or flexible fiberscope. Gastroscopy is a type of endoscopy.Visual inspection of the stomach through a long, flexible tube with a light on the end that is swallowed by the patient