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MRI reveals regions with decreased signal in the bilateral frontal white matter on T1-weighted imagies (A) and high signal intensity on T2-weighted images (B) mainly on the frontal lobe. MRI reveals regions with more decreased signal in the bilateral frontal white matter on T1-weighted imagies (C) and higher signal intensity on T2-weighted images (D) than previous MRI and decreased volume in both frontal white matter.
