Presentation
Back pain and stiffness.
Patient Data
Age: 40 years
Gender: Male
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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.