TY - CHAP M1 - Book, Section TI - Myeloma A1 - Lichtman, Marshall A. A1 - Kaushansky, Kenneth A1 - Kipps, Thomas J. A1 - Prchal, Josef T. A1 - Levi, Marcel M. Y1 - 2011 N1 - T2 - Williams Manual of Hematology, 8e AB - Myeloma is a malignancy of terminally differentiated B cells (plasma cells) that produces a complete and/or partial (light chain) monoclonal immunoglobulin protein.Clinical and laboratory manifestations are heterogeneous, but typically include:— A monoclonal immunoglobulin in plasma and/or monoclonal light chains in plasma and urine. In rare cases, the cells do not secrete a monoclonal protein in the plasma.— Decreased polyclonal immunoglobulin secretion by residual normal plasma cells, which predispose to infections.— Myeloma cell proliferation in marrow leading to impaired hematopoiesis.— Osteolytic bone disease.— Often hypercalcemia as a result of osteolysis.— Sometimes renal dysfunction as a result light chain casts or hypercalcemia.Nearly 85 percent of newly diagnosed myeloma patients who have gene-expression-defined good-risk disease fare so well with therapy that the prospect of cure now appears tenable. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/18 UR - hemonc.mhmedical.com/content.aspx?aid=1126653975 ER -