Could I have barretts esophagus? How diagnosed?

Endoscopy. Barretts esophagus is a change in the cells of the inner lining of the esophagus due to prolonged acid exposure from gerd (~10% of gerd pts). While there is a 40-50 fold increase in esophageal cancer in this group, the highest risk is in people with dysplasia: >75% of pts with high-grade dysplasia will develop ca over the next 10 yrs if left untreated. This is diagnosed by biopsy during endoscopy.