Eosinophilic Esophagitis
Eosinophilic esophagitis (EoE) is a chronic disorder characterized by eosinophil-predominant inflammation of the esophagus and clinical symptoms of esophageal dysfunction. It is believed to be immune/antigen-mediated, and its diagnosis requires recognition of specific clinical features with appropriate histologic findings on esophageal mucosal biopsies. Over the last 10 years, there has been an increase in the prevalence of EoE worldwide. A recent analysis estimated a prevalence of 56.7 per 100,000 persons, with males more often affected than females. This review covers the epidemiology, pathophysiology and pathogenesis, diagnosis, differential diagnosis, treatment, complications, and prognosis of EoE. This review contains 3 figures, 2 tables, and 46 references. Key words: dysphagia, eosinophilic esophagitis, eotaxin-3, esophageal dysfunction, esophageal eosinophilia, food impaction, inflammation of the esophagus