WT1 and myelodysplastic syndrome: Still, WT1-mRNA overexpression nicely enabled discrimination between MDS and and non-MDS cytopenias, and this effect applied when looking at all MDS, but also when focusing on those with a BM blast count <5% (WT1-mRNA overexpression in non-MDS cytopenia 0/17 and WT1-mRNA overexpression in MDS < 5% BM blast count 26/53, p = 0.0001, see also supplementary Fig. 6).