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. 2022 Nov 21;10(11):2997. doi: 10.3390/biomedicines10112997

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Axial brain CT (a) shows two incidentally-discovered focal calcified formations (arrow) located in the interpeduncular cistern, indissociable from the basilar artery. Axial and sagittal 3D CISS images (b,d) characterize the formations (arrow) and their relationship with the basilar artery well, and show the calcifications are mainly located at the periphery of the lesions, appearing as subtle hypointense rims. MRI also reveals the lesions (arrow) present a lipidic core, which appears hyperintense on spin-echo T1-w. sequence (c) and shows signal dropout on fat-suppressed images (not shown). Findings were consistent with osteolipomas.