Pathogenesis Esophagitis Inflammation Normal caused by esophagus acid in LOW stomach Esophageal Barretts Sphincter esophagus: Acid backing up from stomach changes Diaphragm esophagus lining Hiatal hernia: Stomach Diaphragm bulging above diaphrag Pancreatic enzymewww.zshospital.com Pathogenesis HCl Pepsin Bile Pancreatic enzyme Low Esophageal Sphincter