Fig. 5.

Histologic analysis of tissue specimen obtained from within the anterior cingulate gyrus. Hematoxylin and eosin stain (left and middle) and Ki-67 (right) images of a tissue specimen obtained from within a nonenhancing T2 hyperintense tumor component with markedly elevated T1ρ metrics (Fig. 1, Fig. 2, Fig. 4) demonstrates microvascular proliferation (arrows) and a markedly increased cellular proliferation (brown-stained cells) characteristic of biologically aggressive features diagnostic of glioblastoma.