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. 2013 Sep 5;4(5):581–593. doi: 10.1007/s13244-013-0277-1

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© The Author(s) 2013

Open Access This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.

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Fig. 13 — Osteomyelitis in the hallucal sesamoids. Short-axis coronal T2-weighted (a) and T1-weighted (b) MRIs in the same patient as Fig. 12 show complete destruction of the medial hallucal sesamoid (asterisk) and intense bone marrow oedema with T1 hypointensity in the lateral hallucal sesamoid (arrow). Severe soft tissue oedema is seen in the surrounding soft tissues, extending to a plantar cutaneous defect (arrowheads). Pre-contrast (c) and post-contrast (d) fat-saturated T1-weighted MRIs reveal intense enhancement of the medial and lateral sesamoids (asterisks, arrows) and the adjacent soft tissues. Note the ulceration in the plantar soft tissues (arrowhead, a, b, d)