Esophageal Food Impaction and Eosinophilic Esophagitis: A Retrospective Study, Systematic Review, and Meta-Analysis.

Background Esophagealfood impaction (EFI) can be the initial presentation of eosinophilic esophagitis(EoE). EoE is characterized by persistent esophageal eosinophilia(EE). Both EFI and EE are related to a variety of conditions. To date, the relationship between EFI, EE, and EoE remains unclear.