Monosomy 7/deletion of 7q has been found in up to one-third of MDS and AML associated with FA, SDS, GATA2 deficiency, and SCN, and has been described in MDS associated with RUNX1-FPD, TBD, and ERCC6L2 (129). The gene discussed is GATA2; the disease is myelodysplastic syndrome.