Intracranial meningioma

A 70-year-old female presented with a several-week history of confusion. (Panels A, B): Noncontrast and contrast-enhanced head CT shows a large bifrontal lesion with calcifications and surrounding edema. (Panels C, D): Noncontrast and contrast-enhanced T1-weighted axial MR images of the head also demonstrate large flow voids representing blood vessels in the center of the tumor. (Panel E): Noncontrast T1-weighted sagittal MR image. (Panel F): Contrast-enhanced T1-weighted coronal MR image.