Monoclonal gammopathy of undetermined significance (MGUS) is not cancer. There’s a small risk it can become cancer. Out of every 100 people with MGUS, each year, 1 or 2 of them will get cancer from ...

The disease develops from asymptomatic precursor stages, monoclonal gammopathy of undetermined significance (MGUS) and smoldering multiple myeloma (SMM), with a subset of patients progressing from ...