a small tube with a camera is inserted through the mouth to look directly at the stomach and small intestine." Dr. Hindy ...

stomach and duodenal lining for presence of ulcers, esophagitis or gastritis. This is done by passing a thin, flexible tube having camera at its end; through the mouth down the throat,’ says Dr ...

In an upper endoscopy, a tube with a camera and a light on the end ... seek immediate medical attention. An esophageal ulcer is a type of peptic ulcer that develops on the lining of your esophagus ...