Pearsons' correlation coefficients for genotypes vrs PSA (p = 0.02), genotypes vrs gleason score (p = 0.0195), age vrs PSA (p = 0.0412), age vrs gleason score (p = 0.0421), gleason score vrs Tumor-Node-Metastasis (TNM) score (p = 0.0021) and PSA vrs TNM score (p = 0.0189) within the PCa patients were significantly different. The gene discussed is KLK3; the disease is posterior cortical atrophy.