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. 2016 Jun 7;7(5):689–711. doi: 10.1007/s13244-016-0503-8

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© The Author(s) 2016

Open Access This 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. 3 — Mural bladder abscess in a 61-year-old man with recurrent UTIs and clinical and sonographic suspicion of bladder carcinoma. Multiplanar CT images (a–d) depicted a poorly distensible bladder with mural thickening (*), urothelial hyperenhancement (thin arrows) consistent with active UTI, and a fluid-like collection (arrowheads) with irregular peripheral enhancement along the posterolateral aspect. Urine cytology and cystoscopy excluded the presence of tumour. Six weeks later, repeated CT (d) after antibiotic treatment showed resolved abscess, persistent mural thickening (*) and infectious urothelial enhancement (thin arrow). Further follow-up with MRI including T2- (e) and post-gadolinium T1-weighted (f) sequences confirmed abscess disappearance (arrowheads)