["Non-secreting" plasma cell myeloma preceded by refractory sideroblastic anemia (author's transl)].

The authors report the association of a refractory sideroblastic anemia and a "non-excreting" plasma cell myeloma. The anemia was observed 8 years before the onset of the myeloma, which had typical hematological characteristics. Both kappa and gamma light chains were found in the cytoplasm and on the surface of the plasma cells. Pathologic characteristics of this type of myeloma are briefly recalled, as well as the relationships between sideroblastic anemia and kahler's disease, an example of disorders of two lines of hematopoiesis (erythrocytes and leucocytes).