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. 2021 Sep 3;5:38. doi: 10.1186/s41747-021-00228-y

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© The Author(s) 2021

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 5 — Dual-energy computed tomography scan in a patient presenting with right-sided acute ankle trauma. Standard grayscale series (a) does not depict any fracture line. Color-coded virtual non-calcium image (b) shows a distinct traumatic bone marrow edema of the right calcaneus, displayed as a green area (arrow). The finding was confirmed by magnetic resonance imaging (c) using a proton density-weighted sequence (arrow)