Abstract
Focal lymphocytic infiltration in the human labial salivary glands was examined in a series of 190 postmortem subjects after suitable exclusion had been made. Focal lymphocytic infiltration, with or without a slight degree of parenchymal atrophic change, was found in 22.4% of the males and in 35.7% of the females. Of these, 9.0% (12 subjects) of the males and 10.7% (6 subjects) of the females with focal lymphocytic infiltration did not show any atrophic changes of the parenchyma. In the series reported here, the prevalence of focal lymphocytic infiltration apparently differs from the results of earlier investigators who had reported that none of the postmortem subjects without autoimmune diseases or connective tissue diseases showed focal lymphocytic infiltration in minor salivary glands. Although the pathological significance of focal lymphocytic infiltration in the minor salivary glands remains obscure, its diagnostic value for Sjögren's syndrome is discussed.
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