Ankylosing spondylitis with dagger sign

Case contributed by Dr Mohammad Taghi Niknejad

Presentation

Back pain and stiffness.

Patient Data

Age: 50 years
Gender: Female

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. Partial ankylosis is present at both sacroiliac joints.

Case Discussion

The findings of x-ray in a 50-year-old female with back pain and stiffness are consistent with ankylosing spondylitis.

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Case information

rID: 61271
Published: 26th Jun 2018
Last edited: 28th Jun 2018
Inclusion in quiz mode: Included
Institution: Tabesh medical imaging center

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