PMC10374343_01
(A) Lesion extension in patient EP in the follow-up MRI after acute treatment. Right hemisphere is on the left side of the each image respectively. FLAIR sequence from a cerebral magnetic resonance imaging, 3 Tesla, with on the upper left side of the image the inferior and the lower side of the image the upper bound of lesion estension. The hyperintense signal displays the demarcated subacute ischemic and hemorrhagic transformations in the right PCA-territory encompassing the right thalamus, cuneus, hippocampus, gyrus parahippocampalis and the precuneus as well as the right medial and posterolateral thalamus. (B) Hippocampal lesion in patient EP in the follow-up MRI after acute treatment (upper images) and 3 months after symptom onset (lower images). Right hemisphere is on the left side of each image respectively. DWI sequence from a cerebral magnetic resonance imaging, 3 Tesla, on the left side b 1,000 and the ride side the ADC map. On the upper images, the diffusion restriction encompasses the hippocampus, the gyrus parahippcampalis and the temporo-occipital lobes depicted. Note the cortical diffusion restriction of the vental hippocampus. On the lower pictures 3 months after symptom onset, we find the post-ischemic parenchymal lesion of the formerly diffusion restricted regions with evacuo configurartion of the temporal ventricle and loco regional subarachnoid space.
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The follow-up MRI showed demarcated subacute ischemic lesions in the PCA territory, complicated by the hemorrhagic transformation of the right medial and posterolateral thalamus, right cuneus, precuneus, complete hippocampus, and gyrus parahippocampalis (see Figure 1).