Coarctation of the aorta - figure of 3 sign

Case contributed by A.Prof Frank Gaillard

Patient Data

Age: Child

Chest x-ray demonstrates focal indentation of the distal aortic arch consistent with coarctation of the aorta. This is known as a figure of 3 sign. No definite inferior rib notching. 

Annotated image

The figure of 3 sign is the direct visualization of the coarcted segment. 

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Case information

rID: 6274
Published: 21st May 2009
Last edited: 24th Apr 2019
Inclusion in quiz mode: Included

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