AR mRNA expression showed a strong trend toward positive correlation with Ki67 proliferation index (r = 0.44, p = 0.07) and tumor volume (r = 0.36, p = 0.06 for T1-enhancing regions; r = 0.40, p = 0.03 for non-enhancing FLAIR-hyperintense regions). This evidence concerns the gene MKI67 and neoplasm.