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Fig 3. T2-weighted axial images in patient 2 at 52 years of age (disease duration, 17 years). A, There is moderate atrophy of the midbrain and mild atrophy of the pons, middle cerebellar peduncles, cerebellum, and cerebrum. The superior cerebellar peduncles are also atrophic. B, There are symmetric T2 hyperintensities in the midbrain tegmentum around the periaqueductal gray matter.
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