Gammopathy Monoclonal

Monoclonal gammopathy is a synonym for monoclonal hypergammaglobulinemia.

Monoclonal hypergammaglobulinemia is a disease characterized by the proliferation of a clone of plasma cells producing immunoglobulin (antibodies) of one class and subclass, resulting in an increase in the concentration of monoclonal (homogeneous) immunoglobulin in the blood.

This disease can occur in the form of a benign (asymptomatic) gammopathy of unknown origin or transform into a malignant plasma cell tumor - multiple myeloma.