BCR and posterior cortical atrophy: Furthermore, in the subgroup analysis of patients with PCa with a Gleason score ≤ 7 (Figures 4A–C), prognosis worsened with increased CSPG grade (BCR: log-rank P < 0.0001; CSS: log-rank P < 0.0001; and OS: log-rank P < 0.0001).