Erosion of the lateral aspect of the right greater wing of sphenoid and adjacent squamous temporal bone is noted. Aggressive regional periosteal reaction is noted in the region. Associated with this is a contrast-enhancing irregular shaped extra-axial mass conforming to the contour of the sphenoid wing. This is a solitary lesion. There is moderate underlying vasogenic oedema. No midline shift. Basal cisterns are not effaced.
Conclusion: Aggressive extra-axial mass centred on the right sphenoid wing with osseous invasion. Atypical meningioma is favoured with invasive dural metastasis (e.g. prostate primary) remaining a differential.