Figure 4

MRI images for the case 15 in the three-month follow-up. A. The T1W image shows there is an irregular large patchy area with hypointensity in the left parietal lobe including white matter, gray-white matter junction, and gray mater areas. Parenchymal atrophy was seen as decrease in the size of ipsilateral gyrus and sulcus, but increase in the size of corresponding fissures of the lesion and the left ventricle. B. The T2W image shows there is an irregular large patchy area with hyperintensity in the left parietal lobe including white matter, gray-white matter junction, and gray mater areas. Atrophy of parenchyma is seen as the same as seen in the T1W image. C. The enhanced T1W image shows a few beaded enhancing lesions. D. The MRA slice shows decrease in the size and number of the branches in the left posterior artery.