Introduction and objective:
Eosinophilic esophagitis (EoE) is an inflammatory immune-mediated oesophageal disease of growing prevalence. The aim of this study is to characterise the clinical symptoms, endoscopic features and histological findings, as well as their possible correlations, in newly-diagnosed EoE paediatric patients.

Material and methods:
Between 2009–2018, the clinical records of patients diagnosed with EoE at the Paediatric Hospital in Warsaw, Poland, were retrospectively reviewed. Inclusion criteria were upper gastrointestinal tract symptoms in association with oesophageal mucosal biopsy specimens containing not less than 15 intraepithelial eosinophils per hpf. The prevalence and the possible correlations between symptoms, endoscopic features and the density of eosinophilic infiltration were analysed; the medical history of the comorbidities were also assessed.

The study included 47 children (median age 9.5 years). The most common clinical symptoms were abdominal pain (53%) and GERD-like symptoms (26%). The most common macroscopic changes were white plaques and exudates in 47% and furrows in 34%. A macroscopically normal oesophagus was observed in 28% of the children. The median number of eosinophils was estimated to be 45 eosinophils/hpf (IQR: 30–60), and no significant differences were found between the density of eosinophil infiltration and clinical symptoms or endoscopic features. Moreover, 70% of the children had a history of an allergy disease, older children (>3 years) tended to have pollen allergy more often than younger children (p<0.05).

The density of oesophageal eosinophilia does not correlate with symptoms or endoscopic findings in children with newl-diagnosed EoE.

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