The previously described mass appears of low signal intensity on T1WI, high signal intensity on FLAIR and T2WI with characteristic serpentine linear appearance “snake sign” of the calcified membranes within the mass. The peripheral calcification of the pericyst appears of high signal intensity on T1WI, and low signal intensity on FLAIR, T2WI and gradient echo. No peripheral enhancement or surrounding oedema is seen.
Both optic nerves, as well as the optic chiasma, are atrophied; well-visualized on axial and coronal T2 fat sat.