Helicobacter pylori and chronic urticaria in children

© Borgis - New Medicine 1/2001, s. 58-61

Elzbieta Maciorkowska¹, Beata Szynaka², Maciej Kaczmarski¹, Andrzej Kemona²

Summary
The authors carried out an ultrastructural evaluation of the gastric and duodenal mucosa in H. pylori-infected children with co-existing urticaria. In all cases, inflammatory cells such eosinophils and neutrophils, plasmocytes, lymphocytes and mast cells were found in the mucosal membrane under the epithelium, in the vicinity of vessels. The surface of mast cells subjected to degranulation had significantly fewer processes than the surface of undamaged cells. Granulocytes and plasmocytes were noticed in the vicinity of mast cells subjected to degranulation. There was a segmental loss in the endothelial lining and only the basement membrane determined the vessel continuity.

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