The ETS related gene (ERG) subfamily, composed of ERG, FLI1, and FEV genes, and the Polyoma Enhancer Activator 3 (PEA3) subfamily, composed of the ETV1, ETV4, and ETV5 genes, are the best studied ETS subfamilies in PCa [4, 5]. The gene discussed is ERG; the disease is posterior cortical atrophy.