1) Neoplasm 2) Neoplasm of plasma cells 3) Tumor 4) Tumour 
Plasmacytoma refers to a malignant plasma cell tumor growing within soft tissue or within the axial skeleton. There are three distinct groups of plasmacytoma defined by the International Myeloma Working Group: solitary plasmacytoma of bone (SPB), extramedullary plasmacytoma (EP) and multiple plasmacytomas that are either primary or recurrent. The ...
A type of cancer that begins in plasma cells (white blood cells that produce antibodies). A plasmacytoma may turn into multiple myeloma.
<oncology, tumour> Malignant tumour of plasma cells, very similar to a myeloma (plasmacytomas usually develop into multiple myeloma). ... Can easily be induced in rodents by the injection of complete Freund's adjuvant. Plasmacytoma cells are fused with primed lymphocytes in the production of monoclonal antibodies. ... (18 Nov 1997) ... 
(plaz″mә-si-to´mә) plasma cell dyscrasias. solitary myeloma.
A lump that forms when myeloma cells gather in one place. See myeloma section.
Malignant tumour of plasma cells, very similar to a myeloma (plasmacytomas usually develop into multiple myeloma). Can easily be induced in rodents by the injection of complete Freund's adjuvant. Plasmacytoma cells are fused with primed lymphocytes in the production of monoclonal antibodies.
Type: Term Pronunciation: plaz′mă-sī-tō′mă Definitions: 1. A discrete, presumably solitary mass of neoplastic plasma cells in bone or in one of various extramedullary sites; in humans, such lesions are probably the initial phase of developing plasma cell myeloma.
Plasmacytoma: Cancer of the plasma cells (white blood cells that produce antibodies) that may turn into multiple myeloma.
[n] - neoplasm of plasma cells (usually in bone marrow)
noun neoplasm of plasma cells (usually in bone marrow)