What are the diagnostic criteria for active (symptomatic) multiple myeloma (MM)?

Updated: May 11, 2021
  • Author: Dhaval Shah, MD; Chief Editor: Emmanuel C Besa, MD  more...
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Criteria for the diagnosis of active (symptomatic) MM are as follows [2] :

  • Clonal bone marrow plasma cells ≥10% or
  • Biopsy-proven bony or extramedullary plasmacytoma and
  • One or more myeloma-defining events

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