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Electroencephalographic findings before (a) and after steroid therapy (b).
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Electroencephalogram (EEG) demonstrated the presence of subcontinuous 1-2 Hz delta waves and sharp-waves, which were more evident on the right side (Figure 1). After one month, EEG was improved and showed a normal alpha-rhythm (Figure 1), while MRI showed a dramatic improvement of vasogenic edema together with less extensive and less definite microbleeding signals (Figure 2).
MRI findings of CAA-ri. Axial FLAIR images revealing bilateral hyperintense lesions (a). GRE images showing cortical-subcortical microhemorrhages (b). After one month of steroid therapy MRI sequences revealing the reduction of both cerebral edema and microhemorrhages (c-d).
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Gradient-recalled echo (GRE) images revealed the presence of cortical and subcortical microhemorrhages in the white matter of temporal, parietal, and occipital lobes on the right side and of the occipital and parietal lobes of the left hemisphere (Figure 2). After one month, EEG was improved and showed a normal alpha-rhythm (Figure 1), while MRI showed a dramatic improvement of vasogenic edema together with less extensive and less definite microbleeding signals (Figure 2).
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