rim-sign (of ureteric calculi)

Soft tissue
rim sign (ureteric calculus) • Soft tissue rim sign - ureteric stone - Ganzer Fall bei Radiopaedia
Dixon A, Soft tissue rim sign - ureteric stone. Case study, Radiopaedia.org (Accessed on 15 Jan 2023) https://doi.org/10.53347/rID-19046 • CC by-nc-sa 3.0 (modified)
Soft tissue
rim sign (ureteric calculus) • Soft tissue rim sign of ureteric calculus - Ganzer Fall bei Radiopaedia
Bickle I, Soft tissue rim sign of ureteric calculus. Case study, Radiopaedia.org (Accessed on 15 Jan 2023) https://doi.org/10.53347/rID-46772 • CC by-nc-sa 3.0 (modified)
Soft tissue
rim sign (ureteric calculus) • Ureteric calculi - Ganzer Fall bei Radiopaedia
Puyó D, Ureteric calculi. Case study, Radiopaedia.org (Accessed on 15 Jan 2023) https://doi.org/10.53347/rID-22317 • CC by-nc-sa 3.0 (modified)
Radiopaedia • CC-by-nc-sa 3.0 • de

The soft-tissue rim sign is used to distinguish a ureteric calculus from a phlebolith. The former appears as a calcific density with a surrounding rim of soft tissue which represents the edematous ureteric wall. Phleboliths on the other hand usually have imperceptible walls (although up to 8% may have a soft tissue rim sign ) but may have a comet-tail sign.

This sign may be absent in cases of a larger (> 4 mm) or ureterovesical calculus .

Siehe auch:
und weiter:
Assoziationen und Differentialdiagnosen zu soft-tissue rim sign:
Phlebolithen
 
Wikipedia • CC BY-SA 4.0
Kometenschweif-Zeichen
 
Wikipedia • CC-BY-SA-3.0