MRI
Heterogeneous T1w and T2w appearances, with internal cystic content. Thick marginal calcification again shown. More enhancement appreciated following Gadolinium based contrast. No abnormal diffusion outwith the calcified components. As well as the tectal plate displacement, the inferior cerebral veins are inferiorly displaced by the mass, with the choroid plexuses and the pineal gland separate from this lesion. Some thinning of the posterior callosal body and splenium. Small volume signal abnormality above the left ventricular atrium, but no significant oedema for the size of the mass.