Among the 11 genes investigated with qPCR, three (COL1A1, FOXA1, and MMP11) were excluded based on the quality criteria of reactions and six (AMACR, BCL2, GOLM1, NKX3-1, PCA3, and TRPM8) displayed no differences between PCa and controls samples. The gene discussed is NKX3-1; the disease is posterior cortical atrophy.