[Monoclonal gammapathies. (Critical review of 219 cases collected over 3 years)].

219 monoclonal gammapathies have been studied since 1rst January 1973 up to 31st December 1975, regarding 121 males and 98 females, 121 myeloma (mean age: 66 years), 38 Waldenstrom's macroglobulinemia (mean age: 7u years) and 60 various monoclonal gammapathies, among which 19 benign monoclonal gammapathies (mean age: 73 years). 214 immunoelectrophoresis have been performed: 110 IgG, 46 IgA, 49 IgM, 8 light chain myelomas and 1 without M-component myeloma. Bence-Jones proteinuria was detected only in 51,1% of cases.