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FIG. 1. A–E, Axial contrast-enhanced FLAIR images (A) (TR/TEeff/excitations = 10,002/158.8/1, TI = 2200; 5-mm-thick sections) show linear increased signal in several sulci over both convexities. Corresponding T1-weighted images (B) show no analogous abnormality. Coronal FLAIR image (C) (10,002/158.8/1, TI = 2200) obtained 6 hours after the axial image shows hyperintense CSF in sulci over both hemispheres (arrows). An unenhanced CT scan (D) was normal. Follow-up FLAIR image 2 days later (E) was also normal
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