FIG 1. Spin-echo T2-weighted MR images obtained at 1.5T show marked hypointensity in the dentate nuclei (A and D), substantia nigra and red nuclei (B), neostriatum and thalamic nuclei (C and D), and superior and inferior colliculi (B and D). Note the relative hyperintensity of the internal medullary lamina of the thalamus (arrow in C) and the hyperintensity of the pyramidal tract in the posterior limb of the internal capsule. The white matter of the parietal and occipital lobes and of the cerebellar hemispheres is diffusely hyperintense. The cerebral cortex is questionably hypointense (D).

A–C, Axial images.

D, Coronal image.