Smoldering multiple myeloma (SMM) is an asymptomatic clonal plasma cell disorder and is described as an intermediate stage between monoclonal gammopathy of undetermined significance (MGUS) and multiple myeloma (MM). In 2003, the International Myeloma Working Group (IMWG) classified patients with SMM as those who displayed an absence of end-organ damage or the signs and symptoms of amyloidosis...Continue Reading