Metachromatic leukodystrophy.late-infantile form. Two-year-old girl with characteristic involvement of the posterior white matter in the late-infantile form. Axial FLAIR images demonstrate predominant high signal intensity within the posterior periventricular white matter

late-infantile form. Two-year-old girl with characteristic involvement of the posterior white matter in the late-infantile form. Axial FLAIR images demonstrate parietal white matter with (dorsofrontal) progression to involve the frontal white matter.