word. "Plasmacytoma" is sometimes equated with "plasma cell dyscrasia" or "solitary myeloma". It is often used as part of the phrase "solitary plasmacytoma". or as part of the phrase "extramedullary plasmacytoma". In this context, "extramedullary" means outside of the bone marrow. See also Plasma cell dyscrasia Multiple myeloma Monoclonal gammopathy of undetermined significance (MGUS) Waldenström's macroglobulinemia Cutaneous B-cell lymphoma References External links Overview at National Cancer Institute Hematologic malignant neoplasms Lymphoid-related cutaneous conditions Epstein–Barr virus–associated diseases