Hi ALL; I would like to thank everybody who gave me comments on a case of a boy with SLE and CD2+CD56+Dr- cells in BM, I asked for help with. Fortunately I have found one similar case in the literature published by Prieto et al. J.Clin:Path 1996,49,1011-1013. In a new material I got yesterday there is a progression of disease with 40% blasts in the BM (immunophenotype the same I gave previously) and spleen increasing in size. Cytogenetics is normal. I have no other choice than to classify the case as an (acute???) leukemia of NK cells. Best wishes Anna Anna Porwit-MacDonald, MD, PhD Haematopathology Lab., Karolinska Hospital, Stockholm
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