Esophagogastroduodenoscopy

(EGD or Upper Endoscopy)

An upper endoscopy is a procedure that allows the doctor to see the esophagus, stomach and the first part of the small intestine with an endoscope—a lighted, flexible instrument.  The doctor can then view the inside of the digestive system and, if necessary, insert instruments to remove a sample of tissue for biopsy.