There is a large extra-axial mass lesion in the right anterior frontal region with a cystic component at its posterior aspect. This lesion is associated with surrounding vasogenic oedema, exerting a mass effect and compressing the right lateral ventricle, leading to an 8 mm midline shift to the left side.
Additionally, there are patchy intra-axial enhanced lesions in the right frontoparietal lobes. The lesion encases the cavernous part of the right internal carotid artery (ICA), the M1 segment of the right middle cerebral artery (MCA), and extends to the right orbital apex, including the optic nerve and chiasm.
The mass also destructs the frontal sinus, filling it, reaching the sphenoid sinuses, right ethmoid air cells, and the medial aspect of the right orbital cavity, encasing the right superior oblique and right medial rectus muscles, leading to secondary proptosis.
There is unilateral left ventricle hydrocephalus with mild permeation. The mass exhibits isointensity in T1, hypointensity in T2 and FLAIR, and heterogeneous enhancement in the post-contrast study.