in a long-term follow-up study of 430 patients in whom a monoclonal igm serum protein had been identified , 242 ( 56 % ) had monoclonal gammopathy of undetermined significance , 71 ( 17 % ) had waldenstrom 's macroglobulinemia , 28 ( 7 % ) had lymphoma , 21 ( 5 % ) had chronic lymphocytic leukemia , 6 ( 1 % ) had primary amyloidosis , and 62 ( 14 % ) had other malignant lymphoproliferative diseases .
C0024419
waldenstrom 's macroglobulinemia
C0024314
lymphoproliferative diseases