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(A) T1-weighted axial image shows linear hypointensity at the level of cerebral peduncles in the substantia nigra within a mild area of hyperintensity. At the same level in the images (B,C), both T2-weighted, a striking hypointensity can be seen in both substantiae nigrae. A more cranial axial T2-weighted section shows a marked bilateral hypointensity of the globus pallidus (D,E).
