Fig. 2
Contrast-enhanced MRI findings. A The T1-weighted image showed hyperintensity on the anterior left frontal lobe and lateral floor of the left temporal lobe (yellow arrows), with edema in the surrounding tissue. B The cerebral surface of the pia mater was slightly contrast-enhanced (yellow arrow), but there was no apparent enhancement in the cerebral parenchyma. A cystic lesion located in the anterior left frontal lobe indicates a postoperative change of meningioma as described in Fig. 1A. C A small number of minimum hemosiderin deposits (yellow arrows) were observed near the cortex, but no findings strongly suggestive of amyloid angiopathy were observed