Beak sign (bowel)

![(a) Contrast enema showing the air-filled, dilated sigmoid () and the ‘bird’s beak-sign’ (arrow); (b) MRI showing a grossly enlarged and dilated sigmoid ().

Hencke J, Loff S. Recurrent Sigmoid Volvulus in Children—Our Experience and Systematic Review of the Current Literature. Children. 2023; 10(9):1441. https://doi.org/10.3390/children10091441](attachment:4ab26168-102a-4fee-a2cf-96ebf380e00b:children-10-01441-g002.png)

(a) Contrast enema showing the air-filled, dilated sigmoid () and the ‘bird’s beak-sign’ (arrow); (b) MRI showing a grossly enlarged and dilated sigmoid ().

Hencke J, Loff S. Recurrent Sigmoid Volvulus in Children—Our Experience and Systematic Review of the Current Literature. Children. 2023; 10(9):1441. https://doi.org/10.3390/children10091441

![A 47-year-old female status post-hysterectomy presenting with nausea. Coronal contrast-enhanced CT image demonstrates the “beak” sign or focal caliber change of a small bowel loop in the mid abdomen (red arrow) with fecalized material “small bowel feces sign” present proximal to the caliber change (green arrow).

Gopireddy DR, Soule E, Arif-Tiwari H, et al. Spectrum of CT Findings Related to Bowel Adhesions Without Bowel Obstruction: A Comprehensive Imaging Review. J Clin Imaging Sci. 2020;10:80. Published 2020 Dec 10. doi:10.25259/JCIS_126_2020](https://prod-files-secure.s3.us-west-2.amazonaws.com/2aa05644-4658-4c26-84d3-64c36b55fb6c/f3edc32d-a590-42ae-9c56-f5e996236810/beak_sign.jpg)

A 47-year-old female status post-hysterectomy presenting with nausea. Coronal contrast-enhanced CT image demonstrates the “beak” sign or focal caliber change of a small bowel loop in the mid abdomen (red arrow) with fecalized material “small bowel feces sign” present proximal to the caliber change (green arrow).