Ankylosing spondylitis

Case contributed by Mohammad Taghi Niknejad
Diagnosis certain


Low back pain.

Patient Data

Age: 65 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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