[IgD-kappa myeloma with unusual manifestations: an exceptional form]

The diagnosis of IgD (kappa) multiple myeloma was made in a 59-year-old woman. The disease was characterized by paraproteinemia of IgD (kappa) type, the occurrence of plasma cell leukemia, a polymorphous neoplastic proliferation with lymphoplasmacytoid cells, no Bence Jones proteinuria and a hemorrhagic pleural effusion. Judging from the related literature, it seems likely that the following findings have a great tendency to occur in various combinations: IgD (kappa) paraproteinemia, no evidence of Bence Jones proteinuria, polymorphous features of myeloma cells and extramedullary spread.