Planum sphenoidale meningioma
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There is a large well-defined extra-axial dural-based mass arising from the planum sphenoidale with adjacent hyperostosis. It is isointense to the cortical grey matter on T1/FLAIR, mildly high signal on T2 with intense and relatively homogeneous enhancement on postcontrast sequences. Mild surrounding edema with mass effect on the frontal horns and subfalcine herniation.
Typical MRI features of a planum sphenoidale meningioma