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Plasmacytoma
Pronunciation
Definition 1
A type of cancer that begins in plasma cells (white blood cells that produce antibodies). A plasmacytoma may turn into multiple myeloma. (NCI Dictionary)
Definition 2
A malignant (clonal) proliferation of plasma cells that are cytologically and immunophenotypically identical to those of plasma cell myeloma, but manifest a localized osseous or extraosseous growth pattern. (NCI Thesaurus/WHO)
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