IMWG diagnostic criteria for MM and related plasma cell disorders
Reproduced from Rajkumar et al.7
*A bone marrow can be deferred in patients with low-risk MGUS (IgG type, M protein <15 g/L, normal FLC ratio) in whom there are no clinical features concerning for myeloma.
†Solitary plasmacytoma with 10% or more clonal plasma cells is considered as MM.