CD79A and plasma cell myeloma: Only two patients were reported with smoldering myeloma (one with IgG-κ and the other with IgG-λ) and scleredema [2, 6] in the literature, and all the others had MM (five with IgG-κ, four with IgA-κ, one with IgG-λ, and one with IgA-λ; two had IgG and the light chain was not mentioned).