Although few studies have associated CREB3L3, MYBL2, HOXC11, ZIC2, ZNF282, DNMT1, TCF2, FLK4, and KLF6 with ACC progression (DiFeo, Martignetti & Narla, 2009; Jain, Rechache & Kebebew, 2012), there is no evidence linking FOXM1 to ACC. This evidence concerns the gene KLF6 and adrenal cortex carcinoma.