Baby bird’s beak sign

Last revised by Frank Gaillard on 18 Sep 2022

Citation, DOI, disclosures and article data

Citation:

Rasuli B, Gaillard F, Baby bird’s beak sign. Reference article, Radiopaedia.org (Accessed on 19 Apr 2024) https://doi.org/10.53347/rID-152714

DOI:

https://doi.org/10.53347/rID-152714

Permalink:

https://radiopaedia.org/articles/152714

rID:

152714

Article created:

16 Sep 2022, Bahman Rasuli ◉

Disclosures:

At the time the article was created Bahman Rasuli had no financial relationships to ineligible companies to disclose.

Last revised:

18 Sep 2022, Frank Gaillard ◉ ◈

Disclosures:

At the time the article was last revised Frank Gaillard had the following disclosures:

Radiopaedia Australia Pty Ltd and Radiopaedia Events Pty Ltd, Director, Founder and CEO (Radiopaedia) (ongoing)
Biogen Australia Pty Ltd, Investigator-Initiated Research Grant for CAD software in multiple sclerosis: finished Oct 2021 (past)

These were assessed during peer review and were determined to not be relevant to the changes that were made.

Revisions:

3 times, by 2 contributors - see full revision history and disclosures

The baby bird's beak sign is an antenatal ultrasound appearance formed by the pulmonary artery abnormally arising from the left ventricle in fetuses with transposition of the great arteries.

In these cases, the pulmonary artery bifurcation and abnormal outflow tracts mimic the head of a baby bird with an open beak¹.