[Ultrastructural changes in the gastric mucosa in chronic gastritis in children].

Studying a series of 30 children with chronic gastritis (diagnosed by optic fiber gastroscopy and by mucosal biopsy), authors have founded important changes of the superficial mucosa and gastric glands. The histologic changes could explain the well-known functional alterations in chronic gastritis. They discussed also a possible immuno-pathogenic mechanism for these mucosal ultrastructural changes.