RT Book, Section A1 Lichtman, Marshall A. A1 Kaushansky, Kenneth A1 Prchal, Josef T. A1 Levi, Marcel M. A1 Burns, Linda J. A1 Armitage, James O. SR Print(0) ID 1133365427 T1 Macroglobulinemia T2 Williams Manual of Hematology, 9e YR 2017 FD 2017 PB McGraw-Hill Education PP New York, NY SN 9781259642470 LK hemonc.mhmedical.com/content.aspx?aid=1133365427 RD 2024/10/13 AB Waldenström macroglobulinemia (WM) is a lymphoid neoplasm resulting from the accumulation, predominantly in the marrow, of a clonal population of lymphocytes, lymphoplasmacytic cells, and plasma cells, which secrete a monoclonal immunoglobulin (Ig) M.WM corresponds to lymphoplasmacytic lymphoma (LPL) as defined in the Revised European–American Lymphoma (REAL) and World Health Organization (WHO) classification systems.Most cases of LPL are WM. Less than 5% of cases are IgA-secreting, IgG-secreting, or nonsecreting LPL.