Cyber Monday 50% Off! Get our cervical spine x-ray interpretation course for just $9 LEARN MORE

Sigmoid volvulus

Case contributed by Dr Bruno Di Muzio


One day of distension and progressive diffuse abdominal pain. Constipation but no fever or vomiting.

Patient Data

Age: 85 years
Gender: Male

Abdomen X-ray

Markedly dilated bowel in the abdomen, with the apex of the dilated loops pointing toward the right upper quadrant.


CT Abdomen and pelvis

There is a markedly dilated sigmoid colon, with an abrupt transition point at the rectosigmoid junction and swirling of the surrounding mesentery and vessels.

Annotated image

Annotated images.

Case Discussion

Sigmoid volvulus is an abnormal twisting of the sigmoid colon along its mesenteric axis that causes closed-loop obstruction and can lead to ischemia, perforation, and death. 

PlayAdd to Share

Case information

rID: 17788
Published: 12th May 2012
Last edited: 13th Aug 2019
Inclusion in quiz mode: Included

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.