Ankylosing spondylitis with bamboo spine and dagger sign

Case contributed by Mohammad Taghi Niknejad , 18 Feb 2013
Diagnosis almost certain
Changed by Mostafa Elfeky, 23 Apr 2020

Updates to Case Attributes

Age changed from 40 to 40 years.
Presentation was changed:
40 year old patient with backBack pain and stiffness.
Body was changed:

The findings of xray in a 40 Y/O male with back pain and stiffnessx-ray are consistent of ankylosing spondylitis.

  • -<p>The findings of xray in a 40 Y/O male with back pain and stiffness are consistent of <a title="Ankylosing spondylitis" href="/articles/ankylosing-spondylitis">ankylosing spondylitis.</a></p>
  • +<p>The findings of x-ray are consistent of <a href="/articles/ankylosing-spondylitis">ankylosing spondylitis</a>.</p>

Updates to Study Attributes

Caption was added:
Lumbar spine
Findings was changed:

There is typical appearance of bamboo spine with a 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.

Images Changes:

Image X-ray (Frontal) ( update )

Description was removed:
AP radiograph

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