WT1 and acute myeloid leukemia: We identify novel clusters of prognostic relevance (sAML1, sAML2, WT1, trisomies) accounting for 33.3% of AML patients, demonstrate the importance of negative molecular findings (No events, mNOS) and highlight the broad implications of FLT3ITD-positivity irrespective of FLT3ITD allelic ratio.