Promoter methylation is affected in Glutathione-S-transferase-P1 (GSTP1), adenomatosis polyposis coli (APC), retinoic acid receptor β (RARB), and Ras-associated domain family 1 (RASSF1) in several PCa cases, making it possible to consider these genes as PCa biomarkers [265,266,267,268]. This evidence concerns the gene RASSF1 and posterior cortical atrophy.