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. 2014 Aug 15;14:70. doi: 10.1186/1471-2253-14-70

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Copyright © 2014 Jaimes and Rocco; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Comparison of the sacral area on T1 and T2 sagittal images. (A) The T1 on the left shows the thecal sac is partially obscured by EL. (B) The T2 sagittal MR image on the right shows a clear outline of the thecal sac ending at mid S2.