Ankylosing spondylitis with dagger sign

Case contributed by Dr Mohammad Taghi Niknejad


Known case of ankylosing spondylitis

Patient Data

Age: 50
Gender: Female

Typical bamboo spine and dagger sign in a known patient with ankylosing spondylitis.

Case Discussion

The dagger sign is a single central radiodense line on frontal radiographs related to ossification of supraspinous and interspinous ligaments which is seen in ankylosing spondylitis

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Case information

rID: 54155
Published: 24th Jun 2017
Last edited: 13th Mar 2020
Inclusion in quiz mode: Included

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