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. 2021 May 14;100(19):e25865. doi: 10.1097/MD.0000000000025865

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Copyright © 2021 the Author(s). Published by Wolters Kluwer Health, Inc.

This is an open access article distributed under the Creative Commons Attribution License 4.0 (CCBY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. http://creativecommons.org/licenses/by/4.0

This article is made available via the PMC Open Access Subset for unrestricted re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the COVID-19 pandemic or until permissions are revoked in writing. Upon expiration of these permissions, PMC is granted a perpetual license to make this article available via PMC and Europe PMC, consistent with existing copyright protections.

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Postcontrast T1-weighted fat-suppressed magnetic resonance imaging (MRI) of the orbits. (A) Coronal MRI of the orbits reveals bilateral (but left dominant) uniform enhancement of the optic nerve. (B) Sagittal MRI of the right orbit reveals a slightly ill-defined appearance of the optic nerve and slight enhancement of optic nerve sheaths. (C) Sagittal MRI of the left orbit reveals uniform enhancement along with optic nerve sheaths.