title: Histologic findings in "ex- Helicobacter pylori" gastric biopsies of pediatric patients.
abstract: Long-term sequelae of Helicobacter pylori-associated chronic gastritis (HpCG) have been described in adult patients. In the present study we report the histology of gastric mucosa biopsies in 6 asymptomatic pediatric patients (5 male and 1 female; mean age 9.5 years) with previous HpCG. Preceding H. pylori was histologically proved and confirmed by culture, direct visualization, and/or serology before delivering treatment. In 5 of 6 cases the HpCG followed a protracted clinical course, with various therapeutic series needed before H. pylori eradication. Time from final treatment for HpCG to actual biopsy ranged from 3 months to almost 3 years. Gastric mucosa showed mild chronic gastritis with absence of H. pylori organisms (6 of 6), focal loss of gland units with collagenous replacement (6 of 6), serrated foveolae (3 of 6), regenerative changes at elongated glandular necks with cells having enlarged and hyperchromatic nuclei (5 of 6), lymphoid aggregates (2 of 6), and presence of sulfomucins in isolated epithelial cells of glands and foveolae (2 of 6). None of these features were noticed in 10 normal gastric mucosa biopsies used as controls. The referred findings in "ex- H. pylori" pediatric patients may represent very early sequelae from HpCG at this age.
authors: Department of Pathology, Hospital de Niños Superiora Sor María Ludovica, La Plata, Buenos Aires, Argentina.
authors: Marta
authors: M
authors: Cohen
authors: Eduardo Cueto
authors: EC
authors: Rúa
authors: Norma
authors: N
authors: Balcarce
authors: Ricardo
authors: R
authors: Drut
mesh_terms: D000658:Amoxicillin / Q000627:therapeutic use; D001706:Biopsy; D001729:Bismuth / Q000627:therapeutic use; D002254:Carbonates; D002648:Child; D017291:Clarithromycin / Q000627:therapeutic use; D004359:Drug Therapy, Combination; D016099:Endoscopy, Gastrointestinal; D004791:Enzyme Inhibitors / Q000627:therapeutic use; D005260:Female; D005753:Gastric Mucosa / Q000473:pathology*; D005756:Gastritis / Q000188:drug therapy / Q000382:microbiology / Q000473:pathology*; D016481:Helicobacter Infections / Q000150:complications / Q000188:drug therapy / Q000473:pathology*; D016480:Helicobacter pylori / Q000302:isolation & purification / Q000502:physiology; D006801:Humans; D008297:Male; D008795:Metronidazole / Q000627:therapeutic use; D054328:Proton Pump Inhibitors; D011706:Pyloric Antrum / Q000473:pathology*; D012038:Regeneration / Q000187:drug effects
chemical_list: D002254:Carbonates; D004791:Enzyme Inhibitors; D054328:Proton Pump Inhibitors; D008795:Metronidazole; D000658:Amoxicillin; D017291:Clarithromycin; C028508:bismuth subcarbonate; D001729:Bismuth