FIG 3. Anaplastic astrocytoma (grade II/III).

A, Proton density–weighted image (3158/17) demonstrates heterogeneous, left-sided paraventricular lesion extending into the left lateral ventricle. There is a small amount of vasogenic edema.

B, Contrast-enhanced T1-weighted image (600/14/1) demonstrates a small focus of peripheral enhancement.

C, rCBV map demonstrates elevated perfusion. On this occasion, the finding corresponds to the enhancing focus in B.

D, SD25 color map suggests intermediate permeability in the solid portions of this tumor.