Meningioma, left frontal

Otherwise asymptomatic 48-year-old male, there is a well circumscribed, extra-axial, dural based, T1-hypointense, T2/FLAIR-mildly hyperintense, enhancing mass compatible with a meningioma. There is hypercellularity on the diffusion weighted images, and the lesion is partially calcified. There is partially effacement of the the underlying cerebral cortical gyri without perilesional edema. Meningioma are the most common extra-axial masses of the central nervous system. They are typically benign, and complete surgical resection is usually curative. Meningiomas are up to two times more common in females intracranially. They can be seen in the setting of NF-2.