Non-reflux esophagitis: A review of inflammatory diseases of the esophagus exclusive of reflux esophagitis

Esophagitis is a frequent cause of clinical symptoms and is often an indication for upper endoscopy. Mucosal biopsies are procured for diagnostic purposes and may be used to assess the efficacy of treatment, as in patients with eosinophilic esophagitis. This article outlines salient clinical and pathologic features of diseases that cause esophagitis exclusive of reflux esophagitis.