Mast-cell phenotype in indolent forms of mastocytosis. Ultrastructural features, fluorescence detection of avidin binding, and immunofluorescent determination of chymase, tryptase, and carboxypeptidase.

Abstract excerpt

The factor(s) that causes excessive mast cell (MC) proliferation in indolent forms of mastocytosis is not known, nor is it known whether that proliferation is a regulated clonal expansion or merely a non-neoplastic hyperplasia. Human MCs display phenotypes that depend on the microenvironment. Thus, if the phenotype of MCs in mastocytosis lesions is determined to be abnormal for that tissue site (and therefore the...

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