Abstract
An abdominal abscess represents a collection of pus limited to a fibrocapillary “capsule.” After IV enhancement, the capsule intensively accumulates the contrast agent but internal contents keep low density – the “rim enhancement” or the “target” sign (↑).
You have full access to this open access chapter, Download chapter PDF
Keywords
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
An abdominal abscess represents a collection of pus limited to a fibrocapillary “capsule.” After IV enhancement, the capsule intensively accumulates the contrast agent but internal contents keep low density – the “rim enhancement” or the “target” sign (↑). In 50 % of patients, gas bubbles in the abscess can be observed. In 10 % of patients in an appendicular abscess, an appendicolith may be found which is better seen on native images.
Author information
Authors and Affiliations
Rights and permissions
Copyright information
© 2014 Springer International Publishing Switzerland
About this chapter
Cite this chapter
Yudin, A. (2014). Rim Enhancement or Target Sign. In: Metaphorical Signs in Computed Tomography of Chest and Abdomen. Springer, Cham. https://doi.org/10.1007/978-3-319-04013-4_79
Download citation
DOI: https://doi.org/10.1007/978-3-319-04013-4_79
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-04012-7
Online ISBN: 978-3-319-04013-4
eBook Packages: MedicineMedicine (R0)