Radiopaedia 2021 UPDATE Conference-only registration is now closed. Late registration for All-Access Pass and Free Country Pass holders ends this Friday - LEARN MORE

Ankylosing spondylitis with bamboo spine and dagger sign

Case contributed by Dr Mohammad Taghi Niknejad

Presentation

Back pain and stiffness.

Patient Data

Age: 40 years
Gender: Male

There is typical appearance of bamboo spine with a single central radiodense line related to ossification of supraspinous and interspinous ligaments which is called dagger sign. Ankylosing is detectable in both sacroiliac joints.

Case Discussion

The findings of x-ray are consistent of ankylosing spondylitis.

PlayAdd to Share

Case information

rID: 21781
Published: 18th Feb 2013
Last edited: 3rd May 2020
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.