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[Quantitative analysis for mast cells in obstructive sialadenitis].

Quantitative analysis for mast cells in 27 cases of obstructive sialadenitis, 12 cases of approximate normal salivary gland tissues and 5 cases of lymphoepithelial lesion of salivary glands shows that the number of mast cells is slightly increased with the increase of gravity-grade of obstructive sialadenitis and this is closely related to fibrosis of salivary glands and infiltration grade of inflammation cells (dominated by lymphocyte cells), whereas not closely relating to the age change of patients. For the cases of benign lymphoepithelial lesion of salivary glands with malignant changes despite of malignant lymphoma or squamous cell carcinoma the numbers of mast cells are obviously decreased.