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. 2015 May 26;40(7):2710–2722. doi: 10.1007/s00261-015-0429-5

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© The Author(s) 2015

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 9 — Extraperitoneal free air. Sagittal CT image shows pneumatosis of the ascending colon and extraluminal air in the adjacent mesentery (asterisk). This extraperitoneal free air tracks in the anterior and posterior pararenal spaces (arrows) to the bare area of the liver and diaphragm (arrowheads).