Expansile right frontal bone lesion is noted, with low T1 signal and moderate enhancement. Underlying this is a region of dural thickening and enhancement, with effacement of the underlying sulci. Similarly, enhancement and thickening is seen deep to the scalp which extends into the orbit without proptosis. No T2/FLAIR hyperintensity of the underlying brain. No abnormal diffusion restriction. No intra-axial mass.
Conclusion: Features are almost certainly those of an intraosseous meningioma.