A large cavitating tumor with a thick wall measuring about 6.1 x 5.3 cm, associated with surrounding vasogenic edema, significant mass effect, extension into the left lateral ventricle, and uncal & subfalcine herniations, is seen in the left parietal lobe. Multiple foci of hemorrhagic components and new vasculature related to the underlying high-grade tumor, are seen in the wall of the lesion in the gradient-echo images. Abnormal nodular enhancement is seen in the tumor wall on post-contrast images. Restricted diffusion (ischemic stroke) is seen in the whole left cerebral hemisphere as well as in the right ACA & MCA territories, which is most likely related to the mass effect on the vasculature, caused by the uncal and subfalcine herniations. MR spectroscopy shows a high choline-creatine ratio.