Present Illness : A 27-year-old man with a history of severe headache with vomiting of 20 days duration associated with blurring of vision and decreased recent memory of 15 days. Neurological Examination : Papilledema and bilateral sixth nerve palsy CT : A hyperdense intraventricular lesion MRI : A heterointense lesion iso- to hyperintense on T1-weighted, and hypo- and hyperintensities on T2-weighted image What is the possible diagnosis?

What could be the management? *This case is from docplexus editorial team for educational purpose only.