Items tagged “dagger sign”
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Article
Dagger sign (spine)
The dagger sign is a radiographic feature seen in ankylosing spondylitis as a single central radiodense line on frontal radiographs related to ossification of the supraspinous and interspinous ligaments secondary to enthesitis 1. It is possible for the radiodense line to extend into the sacrum 2...
Case
Ankylosing spondylitis
Published
12 May 2016
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X-ray