- large heterogeneous (partly cystic, partly calcified) mass centred in the atrium, occipital horn, and posterior body of the right lateral ventricle
- satellite nodules within the right lateral ventricle temporal and frontal horns suggest CSF dissemination
- entrapment of the temporal horn of the right lateral ventricle
- vasogenic oedema in the surrounding brain parenchyma
- mass effect: medialization of the right uncus, effacement of the basilar cisterns, leftward midline shift of 12 mm, deformity of the midbrain/cerebral peduncles