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Figure 4.

Figure 4.

Magnetic resonance imaging (MRI) in healthy normal subject versus patient with Huntington’s disease (HD). Coronal T2-weighted fluid-attenuated inversion recovery (FLAIR) MRI in (A) a healthy control subject and (B) an HD patient. (A) A 68-year-old healthy individual shows normal caudate size (indicated by arrows). (B) A 67-year-old patient with moderate stage HD, 7 years after onset shows diffuse cortical atrophy with disproportionate caudate atrophy (arrows) and corresponding enlargement of the lateral ventricles. Orientation is radiological.