Beak sign of aortic dissection

Case contributed by Konstantin Benno Bräutigam


Patient found unconscious at home. Emergency CT.

Patient Data

Age: 60
Gender: Female

Arterial dissection - Stanford Type A - with beak sign indicating false and true lumen.

Annotated image

Arterial dissection - Stanford Type A - with beak sign (arrows) identifying the larger false lumen. Note blunting of the acute angle due to thrombus formation (white arrows).

Case Discussion

Diagnosis: Aortic dissection, Stanford Type A. Patient went directly to theater.

This case illustrates the "beak sign", a wedge-shaped component of the false lumen. It is a reliable sign in detecting the false lumen of dissection.

In some cases (as with this case), thrombus formation may blunt the "beak".

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Case information

rID: 58696
Published: 10th Apr 2018
Last edited: 14th Aug 2019
System: Vascular
Inclusion in quiz mode: Included
Institution: Charité Universitätsmedizin Berlin

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