[Erythroid stem (CFU-E) cells and erythropoietin levels in certain hematological diseases].

The aim of this paper is the trial of explanation of anaemia in certain immunological disorders. This approach consists measure of the Epo serum level and clot culture of bone marrow CFU-E cells. In the plasmocytoma patients inversely proportional dependence between number of CFU-E colonies and percentage of plasmocytes in bone marrow was observed. In low grade lymphoma patients the number of CFU-E colonies in vitro was greater than the standard value. Non proportional increase of Epo serum concentration to the level of anaemia in patients with acute leukemia was observed.