Now, if they see areas of abnormality, ulceration, significant inflammation, or growth, then they may pass a small instrument through the scope, obtain a sample of the tissue, which they will send to the lab. Pathologists will look at it under a microscope and see exactly what's going on. Do you have significant inflammation? Do you have some other disease process which has infiltrated the lining of your esophagus? Or do you have a tumor? Based upon the information gleaned from the followup tests, your physician will be in a better position to make certain recommendations as to future treatments and evaluations.