Prognosis of high-risk group of monoclonal gammopathy of undetermined significance (MGUS) and smoldering multiple myeloma (SMM)
2011
Abstract
Monoclonal gammopathy of undetermined significance (MGUS) and asymptomatic form of myeloma are associated with a long-term risk of progression to active disease symptomatic multiple myeloma or related malignancy. As far as the malignant transformation MGUS is concerned, size and type of the serum monoclonal immunoglobulin (monoclonal protein, M-protein, M-Ig), serum kappa and lambda free light chain ratio, number of clonal plasma cells in bone marrow, number of clonal plasma cells in peripheral blood, immunophenotype of plasma cells, and another factors seem to play a predictive role.