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FIG 1. A, 32-year-old man. Sagittal T2-weighted MR image (3500/80/3) reveals areas of fuzzy hyperintense signal in the left frontoparietal region and centrum semiovale.
B and C, MR spectrum (B) reveals decreased choline (choline/creatine ratio, 0.70) in the left centrum semiovale (voxel indicated by box in C).
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