MKI67 and neoplasm: The cross correlation analysis revealed that the peritumor/tumor ADC ratios correlated moderately with tumor size (r = 0.59, p < 0.001) and LNM (r = 0.36, p = 0.001) yet otherwise weakly with histological grade (r = 0.32, p = 0.002), Ki-67 index (r = 0.24, p = 0.028) or LVI (r = 0.25, p = 0.018), while both tumor and peritumor ADC values correlated only weakly with histopathological parameters.