Beak sign of aortic dissection (annotated image)
Citation, DOI, disclosures and case data
Tatco V, Beak sign of aortic dissection (annotated image). Case study, Radiopaedia.org (Accessed on 23 Mar 2023) https://doi.org/10.53347/rID-45721
At the time the case was submitted for publication Vincent Tatco had no recorded disclosures.View Vincent Tatco's current disclosures
6 Jun 2016
9 times, by 1 contributor - see full revision history and disclosures
From the case: Beak sign of aortic dissection (annotated image)
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Annotated image demonstrating the beak sign of aortic dissection.
Author: Vincent Tatco
The beak sign is a cross-sectional imaging feature that is helpful in differentiating the true and false lumens in aortic dissections. This feature is seen in the false lumen which wedges around the true lumen. The wall of the false lumen and the intimal flap usually form acute angles resembling a bird’s beak.
- 1. LePage MA, Quint LE, Sonnad SS et-al. Aortic dissection: CT features that distinguish true lumen from false lumen. AJR Am J Roentgenol. 2001;177 (1): 207-11. doi:10.2214/ajr.177.1.1770207 - Pubmed citation
- 2. Moullet P, Mann H. Beak sign. J Thorac Imaging. 2014;29 (6): W90. doi:10.1097/RTI.0000000000000098 - Pubmed citation