Non-IgE Medicated Food Allergy: Eosinophilic Esophagitis Update on the Pathogenesis, Clinical Features, and Management of Eosinophilic Esophagitis in Children

Abstract

Eosinophilic esophagitis (EoE) is a chronic allergic disorder of increasing worldwide prevalence. Diagnosis and management require upper gastrointestinal endoscopy with biopsy. Therapeutic strategies in children and adults include empiric and testing-based elimination diets as well as topical esophageal corticosteroids. The last 12 months have provided a number of insights including updated diagnostic/management guidelines, the role of PPI therapy, and an understanding that EoE disease mechanisms rely on basophils and mast cells in addition to eosinophils. Novel diagnostic techniques have been described and include the esophageal string test and a molecular gene array panel. In addition, new techniques for assessing esophageal rigidity have been reported. In this review, we summarize the most impactful findings in EoE over the last 12–15 months.