FIG 1. Patient 10.

A, Axial T1-weighted spin-echo image at the level of basal ganglia shows hyperintense lesions in the bilateral peripheral globus pallidus, lateral pulvinar (arrowhead), and medial occipital cortex.

B, Axial T2-weighted image spin-echo showing hypointensity in the bilateral globus pallidus (small arrowhead) and putamen (arrowhead).

C, Noncontrast axial CT scan reveals calcification in the bilateral globus pallidus and medial occipital cortex; however, no abnormal attenuation exists in the pulvinar.

D and E, Coronal gradient echo images show hypointensity in the putamen and substantia nigra (D, arrowhead) but normal SI in pulvinar (E).