PMC3173916_01
First Brain MRI. Axial FLAIR images demonstrating hyperintense extensive and confluent lesions in cerebellar white matter (a), affecting the corpus callosum (b) and compromising the central and juxtacortical white matter (c)
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F1
The first MRI showed hyperintense FLAIR/T2 lesions in cerebellar white matter [Figure 1a], and also in central, periventricular and juxtacortical white matter [Figure 1b and c].
Second brain MRI. Axial FLAIR image (a) demonstrating hyperintense extensive and confluent lesions in central and juxtacortical white matter (dense arrow). Sagittal reformation (b) shows involvement of pericallosal and cerebellar white matter, sparing the U-fibers (dense arrows). Axial T2 gradient echo-weighted images (c and d) showing areas of very low signal, corresponding to breakdown products of hemoglobin (thin arrows), in the corpus callosum (c) and in the right centrum semiovale (d)
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F2
The second MRI, in addition to the impairment of cerebral and cerebellar white matter [Figure 2a and b], showed hemorrhagic lesions in the corpus callosum and right centrum semiovale [Figure 2c and d].