Monoclonal gammopathy of clinical significance in a young patient treated with melphalan-thalidomide-prednisone.

Key Clinical Message: We report an observation of a young patient presenting with severe type 1 cryoglobulinemic vasculitis revealing a monoclonal gammopathy of clinical significant. Treatment with Melphalan-Thalidomide Prednisone improved the symptoms. Early diagnosis would prevent serious tissue damage.