Endoscopic diagnosis and management of eosinophilic esophagitis.

Eosinophilic esophagitis is a chronic allergic inflammatory disease, and its incidence and prevalence have recently increased. Eosinophilic esophagitis has not become a rare disease; thus, knowledge for diagnosing it is needed in current clinical practice. The adequate management of endoscopic procedures is particularly important for the diagnosis and evaluation of inflammatory activity and therapeutic responses.