Eosinophilic Gastritis in a Child. How to Suspect? Diagnostic Criteria

Objective of the Review: To analyze current data on eosinophilic lesions of the stomach in children with the analysis of a clinical case. Key points. Diseases of the gastrointestinal tract associated with primary tissue eosinophilia are a heterogeneous group of changes characterized by inflammation, with predominantly eosinophilic tissue infiltration in the absence of other known causes. Clinical manifestations of allergic inflammatory diseases of the gastrointestinal tract are most often nonspecific. Depending on the level of the lesion, eosinophils are distinguished: gastritis (EoG), enteritis, and colitis. In recent years, more and more attention of experts has been directed to research in this area, but so far there are no general epidemiological data on the prevalence of this pathology in the population, both adults and children. Conclusion. Currently, there are no clear morphological criteria for diagnosing eosinophilic lesions of the stomach, small and large intestine in children, and clinical manifestations, especially in young children, are nonspecific. When making a diagnosis of EoG, it is necessary to take into account a family allergic history, a set of laboratory diagnostic data (eosinophilia in a clinical blood test and a high level of total IgE) and a morphological study of a biopsy of the gastric mucosa. Keywords: children, eosinophilic gastritis, eosinophilia, tissue eosinophilia, food allergy.