MKI67 and central nervous system cancer: Figures 1, 2 and 3 showed the manifestations of WHO grade 2, 3 and 4 gliomas on T1-weighted (T1w) images, T2-weighted (T2w) images, post-gadolinium T1w images, ADC maps, CBF maps, APT maps and Ki-67 immunohistostaining maps, respectively.