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Ankylosing spondylitis with bamboo spine and dagger sign

Case contributed by Dr Mohammad Taghi Niknejad


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.

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Case information

rID: 21781
Published: 18th Feb 2013
Last edited: 3rd May 2020
Inclusion in quiz mode: Included

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