(A) Axial FLAIR MRI reveals multiple areas of high signal intensity (arrows) in leptomeninges. (A) Axial FLAIR MRI reveals multiple areas of high signal.

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Date of download: 7/2/2016 Copyright © 2016 American Medical Association. All rights reserved. From: Stroke in a Healthy 46-Year-Old Man JAMA. 2001;285(21):

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Fig. 2. Imaging findings of the lesion on brain MRI

Fig. 3. A 38-year-old man with large ruptured left paraophthalmic internal carotid artery (ICA) aneurysm (case 7). (A) Lateral view of left ICA angiogram.

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Copyright © 2001 American Medical Association. All rights reserved.

Nat. Rev. Neurol. doi: /nrneurol

Volume 78, Pages (January 2018)

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Axial T1-weighted image after contrast administration (A) and a FLAIR image (B) demonstrating a left parietal subcortical DVA with deep venous drainage.

Case 1, a 45-year-old female (same patient shown in Figure 1 images) with recurrent infarctions in the right middle cerebral artery. (A) Axial fluid attenuation.

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Presentation transcript:

(A) Axial FLAIR MRI reveals multiple areas of high signal intensity (arrows) in leptomeninges. (A) Axial FLAIR MRI reveals multiple areas of high signal intensity (arrows) in leptomeninges. (B) Axial contrast enhanced T1 weighted image shows diffuse enhancement along leptomeningeal surfaces (arrows). (C) Lateral view of right carotid angiogram and (D) right vertebral angiogram demonstrate severe stenoses at the distal ICA (arrow) and wide terminal segments of the posterior and middle cerebral arteries due to extensive leptomeningeal collateral flow (arrowheads). J Gaa, and S Weidauer J Neurol Neurosurg Psychiatry 2004;75:1170 ©2004 by BMJ Publishing Group Ltd