Clinical data. (A) Correlation between blast percentage and RS percentage, both determined in diagnostic BM smear. Box plot represents median and range of blast percentage in the RS cohort. (B) Pie charts representing risk classification (ELN 2017) for total RS cohort (all cases) and 3 subgroups based on RS percentage (Table 1). *Mutational status of ASXL1, RUNX1, and TP53 unknown.