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. 2015 Feb 28;13:89. doi: 10.1186/s12957-015-0477-x

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© Sun et al.; licensee BioMed Central. 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), 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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Cystic meningioangiomatosis with a cystic-mural nodule pattern. (a) CT scan showed a cystic-mural nodule lesion in the right insular lobe. (b-d) In non-enhanced MRI, the cystic content demonstrated similar signal intensity as cerebrospinal fluid (CSF), while the mural nodule demonstrated iso-signal intensity on T1WI, T2WI, and DWI. (e) On post-contrast MRI, the mural nodule demonstrated significant enhancement, while the cystic wall and content showed no enhancement. (f) Pathological examination showed perivascular spindle-cell proliferation.