Fig. 2. 75-year-old woman with global aphasia.

Initial brain MRI shows linear contrast enhancement (arrows) on brain surface on postcontrast FLAIR imaging, which is early hyperintense acute reperfusion marker sign (A). There is no evidence of acute infarction on diffusion-weighted image (B), and no intracranial hemorrhage on gradient echo image (C). There is contrast present from previous images performed 7 hours prior in cerebrospinal fluid space on follow-up FLAIR image, which is feature of classic HARM (D-F). FLAIR = fluid attenuated inversion recovery