Dysgammaglobulinemia in the Presence of Plasma Cells

Abstract

AS information about the gamma globulins has increased, it has become apparent that these are a heterogeneous group of proteins, varying in molecular size, antigenicity and electrophoretic mobility¹ but having antibody activity in common. For the latter reason, the term immunoglobulin has been proposed to denote these proteins.² At the present time three major classes of immunoglobulins are recognized, designated gamma₂, gamma₁A and gamma₁M. Gamma globulins may be found in the urine, but here they are predominantly of smaller molecular weight and have been called microgammaglobulins.^{3 4 5}.In the past several years the structures . . .