Splitting of RA and RARS (according to FAB) as warranted by the WHO classification.

This figure shows details of the redistribution of patients with RA and RARS classified according to the FAB proposal in the new proposal made by WHO. These patients are now classified among the subgroups RA, RARS, RA with multilineage dysplasia (RC+Dys), del (5q) syndrome, and MDS unclassifiable.