Oncology Data Advisor™ · Treatment Advances in Waldenstrom Macroglobulinemia Waldenstrom macroglobulinemia (WM) is a rare cancer of B lymphocytes associated with lymphoplasmacytic bone marrow infiltration and the presence of serum monoclonal immunoglobulin M (IgM) (LLS, 2021). Often considered a disease occurring in older adults, this malignancy accounts for between 1% and 2% of non-Hodgkin lymphomas (Dimopoulos & Kastritis, 2019; ACS, 2018).&n...