SQSTM1 and posterior cortical atrophy: Concerning the prevalence of SQSTM1, no correlation was found between the positivity of the protein and the grade of PCa lesions; the levels of SQSTM1 appeared higher in tumors with a lower Gleason score (Gleason 6), with respect to higher Gleason scores (GL7 and GL8) (Fig. 2a, right panel).