immunoelectrophoresis was performed in 31 of 272 patients with chronic active hepatitis ( cah ) because of an m-spike component ( seven patients , 2.6 % ) or hypergammaglobulinemia ( 24 patients ) revealing a monoclonal gammopathy ( mg ) in 11 patients .
C0020455
hypergammaglobulinemia
C0026470
monoclonal gammopathy