title: Cytology of myeloma cells.
abstract: A cytological, cytochemical, and cytometric study of plasma cells from 195 cases of multiple myeloma showed that, contrary to earlier reports, flaming cells, thesaurocytes, and intranuclear inclusions are not confined to IgA-secreting cases but are common also in IgG and Bence Jones varieties of myeloma. IgA-secreting cells are not larger, nor do they have a lower nuclear cytoplasmic ratio than other myeloma cells. On average, for a given mass of tumour, Bence-Jones, IgG, and IgA varieties of myeloma produce amounts of paraprotein in the ratio 1 to 1-6 to 2-7.
mesh_terms: D001536:Bence Jones Protein / Q000032:analysis; D006651:Histocytochemistry; D006801:Humans; D007122:Immunoelectrophoresis; D007070:Immunoglobulin A / Q000032:analysis; D007072:Immunoglobulin D / Q000032:analysis; D007074:Immunoglobulin G / Q000032:analysis; D007145:Immunoglobulin kappa-Chains / Q000032:analysis; D007146:Immunoglobulin lambda-Chains / Q000032:analysis; D009101:Multiple Myeloma / Q000378:metabolism / Q000473:pathology*; D010950:Plasma Cells / Q000032:analysis / Q000473:pathology*; D011123:Polyploidy
chemical_list: D007070:Immunoglobulin A; D007072:Immunoglobulin D; D007074:Immunoglobulin G; D007145:Immunoglobulin kappa-Chains; D007146:Immunoglobulin lambda-Chains; D001536:Bence Jones Protein