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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. 8 — Pelvic intraperitoneal fluid vs extraperitoneal fluid. Pelvic fluid is shown in 2 different patients. The patient in A has intraperitoneal fluid. The patient in B and C has extraperitoneal fluid. A axial CT image shows intraperitoneal fluid in the right and left paravesical recesses (asterisks) lateral to the sigmoid colon (S) and superior to the bladder (not shown). B Axial CT image of a different patient shows extraperitoneal fluid in the prevesical space (asterisk) anterior to the decompressed bladder (arrowhead) containing a catheter. The bladder is displaced posteriorly. Fluid extends within the prevesical space (arrows) lateral to the bladder giving a “molar tooth” appearance. C sagittal CT image in the same patient as in B shows extraperitoneal fluid in the prevesical space (asterisk) anterior to the posteriorly displaced bladder (arrows) containing a catheter.