34 patients with primary myelodysplastic syndrome ( mds ) , initially diagnosed as subtypes refractory anaemia ( ra ) and ra with ringed sideroblasts ( ra-s ) , were followed to investigate the distribution of lymphoid and myeloid differentiation antigens in the blood and bone marrow in search of potential prognostic significance with regard to progression to ra with an excess of blasts ( raeb ) or acute myeloid leukaemia , and for relations to clinical , morphological and cytogenetic findings .
C0005953
bone marrow
C0002894
raeb