collar sign

Collar sign
in diaphragmatic rupture • Left diaphragmatic rupture with hourglass sign on Barium study - Ganzer Fall bei Radiopaedia
Niknejad, M. Left diaphragmatic rupture with hourglass sign on Barium study. Case study, Radiopaedia.org. (accessed on 02 Nov 2022) https://doi.org/10.53347/rID-20599 • CC by-nc-sa 3.0 (modified)
Collar sign
in diaphragmatic rupture • Traumatic diaphragmatic rupture - Ganzer Fall bei Radiopaedia
Bickle, I. Traumatic diaphragmatic rupture. Case study, Radiopaedia.org. (accessed on 02 Nov 2022) https://doi.org/10.53347/rID-48023 • CC by-nc-sa 3.0 (modified)
Collar sign
in diaphragmatic rupture • Collar sign of diaphragmatic rupture - Ganzer Fall bei Radiopaedia
Narayanan, H. Collar sign of diaphragmatic rupture. Case study, Radiopaedia.org. (accessed on 02 Nov 2022) https://doi.org/10.53347/rID-57853 • CC by-nc-sa 3.0 (modified)
Radiopaedia • CC-by-nc-sa 3.0 • de

The collar sign, also called the hourglass sign, is a helpful sign for diagnosis of diaphragmatic rupture on coronal or sagittal CT/ MR images and barium studies. It refers to a waist-like or collar-like appearance of herniated organs at the level of the diaphragm.

Small tear on the right side can appear as a subtle focal indentation of the liver on axial images and can be overlooked. This sign requires careful examination of multiplanar reformatted images .

See also

Siehe auch:
und weiter:
Assoziationen und Differentialdiagnosen zu collar sign:
Zwerchfellruptur
 
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