Fig. 1.

Axial CT (A) Heterogeneous, predominantly hyperdense mass in the right posterior fossa (black arrow) centered over the right cerebellar hemisphere, not the cerebellopontine or cerebellomedullary angles. There are cystic changes within the mass and punctate peripheral calcification. (B) Cystic changes in the bilateral basal ganglia, extending into the temporal stem on the left, and right frontal operculum. Diffuse calcification in the right basal ganglia extends to the superior aspect of the medial temporal lobe. (C) Linear calcification along the margins of left MCA.