Ankylosing spondylitis with dagger sign

Case contributed by Mohammad Taghi Niknejad , 26 Jun 2018
Diagnosis almost certain
Changed by Brian Gilcrease-Garcia, 27 Jun 2018

Updates to Study Attributes

Findings was changed:

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. Relatively ankylosingPartial ankylosis is present at both sacroiliac joints.

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