Right frontal grade 3 (malignant) meningioma

49-year-old with pathologically proven grade 3 meningioma. Noncontrast head CT (A) shows mass effect from a large right frontal mass with heterogeneous density and surrounding vasogenic edema. The mass has heterogeneous signal intensity on transverse axial T2-weighted MRI (B) and a thick peripheral rim of hypointense signal relative to the hyperintense core. Postcontrast MRI (C) shows the enhancing mass with central hypoenhancement, suggesting central necrosis. Perfusion-weighted MRI (D) showed no elevation of relative cerebral blood volume.