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  • Title: Characterization of the inflammatory infiltrate in peptic oesophagitis.
    Author: Tozzi A, Staiano A, Paparo F, Miele E, Maglio M, Di Meo M, Simeone D, Troncone R.
    Journal: Dig Liver Dis; 2001; 33(6):452-8. PubMed ID: 11572570.
    Abstract:
    BACKGROUND: The diagnosis of oesophagitis is mainly based on histology, but interpretation of endoscopic biopsies is often difficult. We performed immunohistochemical studies on oesophageal biopsies to see if better characterization of the inflammatory cell infiltrate would improve the accuracy of the histologic diagnosis of gastro-oesophageal reflux disease. METHODS: The study groups consisted of 40 consecutive children (mean age +/- SD: 79.6 +/- 5l.9 months; 20 boys) with gastro-oesophageal reflux disease and 7 symptomatic children (mean age +/- SD: 52.6 +/- 37.0 months; 3 boys) without gastro-oesophageal reflux disease. All patients underwent upper gastrointestinal endoscopy with oesophageal biopsies. The diagnosis of gastro-oesophageal reflux disease was established by conventional endoscopic and histologic criteria. In each mucosal biopsy specimen, the number of intraepithelial CD3+, CD25+ (IL2 receptor+), ICAM+, HLA-DR+ and mucosal mast cells were determined. RESULTS: Conventional histology was in close agreement with endoscopic findings (p<0.001) and reflected the clinical score even more than endoscopic findings. Conventional histology significantly correlated with each inflammatory immunohistochemical marker (<0.05 for each), but the markers were not predictive of symptom severity. Immunohistochemical markers were always abnormal in the gastro-oesophageal reflux disease patients, even in the mildest cases of oesophagitis. CONCLUSIONS: Although there is a good correlation between symptoms and histology, in a subset of patients, immunohistochemical studies appear useful in supporting the histological diagnosis of gastro-oesophageal reflux disease.
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