MR images for the case 2. A. The T1W image shows there is an irregular large patchy area of hypointensity in the right parietal lobe. B. The T2W image shows there is a serpiginous tubular hyperintense lesion (Black arrow) with a perilesional large patchy irregular edema (White arrow) in the right parietal lobe. The edema shows low signal on the T1W image and high signal on the T2W image. C and D. The enhanced T1W images show a serpiginous tubular enhancement for the lesion.