FIG 4. Patient 17: late-onset GLD.

A, Axial fluid-attenuated inversion recovery MR image (6500/105, 180/1) shows symmetric increased signal intensity within the pyramidal tract (arrows) and parietooccipital white matter (arrowheads).

B, Axial T2-weighted MR image (3400/90/1) shows increased signal intensity in the posterior body of the corpus callosum (curved arrows) as well as the pyramidal tract (straight arrows).