2. Protein criteria must be present (quantifiable M-component of IgG, IgA, IgD, or IgE and/or urinary kappa or lambda light chain, Bence-Jones protein, or Free Kappa Light Chain or Free Lambda Light Chain) in order to evaluate response. Non-secretory patients are eligible provided the patient has > 20% plasmacytosis OR multiple (>3) focal plasmacytomas or focal lesions on MRI.