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FIG 1. Case 1, a 56-year-old man who presented with vertigo and unstable gait of 2 days’ duration.
A, Parasagittal MR T1-weighted image shows multiple areas of decreased signal intensity involving the genu and the anterior aspect of the corpus callosum.
B, MR T2-weighted image corresponding to A shows the lesions to be hyperintense and also some mild atrophy of the involved portions of the corpus callosum.
C, MR Axial T2-weighted image shows a mild degree of periventricular white matter hyperintensity, particularly in the region of the frontal horns of the lateral ventricle.
D, Axial T2-weighted image at the level of the centra semiovale shows a mild degree of periventricular white matter hyperintensities.
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