NCIt synonyms : Plasma Cell Myeloma by Revised International Staging System Stage; Plasma Cell Myeloma by RISS Stage;
NCIt definition : A staging system for multiple myeloma based on the Revised International Staging System
(RISS) criteria. This staging system does not apply to smoldering multiple myeloma
(no AJCC staging system), monoclonal gammopathy of undetermined significance (no AJCC
staging system), and Waldenstrom macroglobulinemia (no AJCC staging system). (from
AJCC 8th Ed.);