Waldenström’s Macroglobulinemia

Abstract

Waldenström’s 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 (Owen et al., Semin Oncol 30:110, 2003). WM corresponds to lymphoplasmacytic lymphoma (LPL) as defined in the Revised European-American Lymphoma (REAL) and World Health Organization classification systems (Harris et al., Blood 84:1361, 1994; Harris et al., Ann Oncol 10:1419, 1999). Most cases of LPL are WM; less than 5% of cases are IgA-secreting, IgG-secreting, or nonsecreting LPL. © 2018, Springer International Publishing Switzerland