A new study by researchers at Winship Cancer Institute of Emory University finds that cancer-associated mutations originate in blood progenitor cells, leading to distinct changes in both cancer and non-cancer immune cells in Waldenstrom macroglobulinemia (WM), a type of non-Hodgkin lymphoma and its precursor IgM monoclonal gammopathy of undetermined significance (MGUS). The study by Madhav.