Unenhanced CT of the head shows high density areas in the right lateral ventricle and right thalamus. The atrium of the right lateral ventricle expanded by the high-density lesion. Axial T2WI at the level of mid brain shows predominantly hypointense mass in the right mesial temporal lobe with surrounding hyperintensity. The right ventricle is compressed and filled with mixed intensity material.
Membrane thickening is noted in the sphenoid sinus.
Some phase artifact is noted. Materials with mixed signal intensity fill the right temporal horn. Coronal T1WI confirms the signal void just medial to the right temporal horn. Areas of high signal are seen in the right frontal horn and deep right temporal lobe. The anterior choroidal branch of the ICA is the feeding artery.