The endoscope has revolutionized the field of gastroenterology. Through it, the physician can directly examine almost any part of the intestinal tract. Biopsies can be obtained, polyps removed and clear images obtained. This gallery of endoscopy images provides views of the GI tract from top to bottom. The gallery is separated into the various organs within the abdomen - esophagus, stomach, colon, etc. Within each section, there are normal images and then the various diseases and problems the physician may see. If you have questions about a specific picture, print it and the next time you see your physician, ask him or her about it. On some pictures, you will find links to other sections within Patient Education. For example, an image of a stomach ulcer will be linked to a detailed description of peptic ulcers. We hope you have a nice trip through the gallery.