[B-cellular lymphoid follicles of gingival mucous membrane in cases of chronic apical periodontitis].

The structure of gingival mucous membrane leukocytal infiltration of 80 patients with chronic apical periodontitis of different age groups was studied by the light microscopy with the use of monoclonal antibodies to CD38. It was disclosed that in gingival tissues of practically all patients 2 types of leukocytal infiltration were present with low number of plasmatic cells and high number of neutrophils (true leukocytal infiltration) and structures with high number of plasmatic cells and low number of neutrophils - most likely lymphoid follicle resultant in mucous membranes of different organs in cases of chronic inflammation. In epithelial gingival paving in cases of chronic apical periodontitis CD38(+)-cells were absent.