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. 2017 Apr 28;9(4):178–190. doi: 10.4329/wjr.v9.i4.178

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©The Author(s) 2017. Published by Baishideng Publishing Group Inc. All rights reserved.

Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/

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Posterior meningocele with persistent terminal ventricle. T2 weighted sagittal (A) and axial (B) images of lumbosacral spine showing posterior meningocele and persistent terminal ventricle. There is herniation of a CSF filled sac (arrowhead) through a posterior spina bifida (dashed arrow) consistent with posterior meningocele. No neural tissue is noted within the CSF sac. There is another CSF attenuation lesion in conus medullaris (black arrow) suggestive of persistent terminal ventricle. The filum terminale is short and thick (white arrow) with low lying spinal cord suggestive of tight filum terminale. CSF: Cerebrospinal fluid.