This retrospective chart review will be done to evaluate the use of confocal microscopy imaging in patients who were seen at Mayo Clinic for clinically indicated endoscopic surveillance and biopsies of BE.~Endoscopy reports and pathology results will be reviewed from 100 patients who have undergone endoscopy. These results will be correlated with images obtained with confocal microscopy at the time of the endoscopy. There will be no patient contact.
This data review will be done to evaluate the use of confocal microscopy imaging in patients who were seen for clinically indicated endoscopic surveillance and biopsies of Barretts Esophagus