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 supraspinous and interspinous ligaments.

Arthritides
Inspired signs
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Article information

rID: 1200
Section: Signs
Tags: stub, refs, spine
Synonyms or Alternate Spellings:
  • The dagger sign

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Cases and figures

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    Figure 1: photograph of dagger
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    Dagger sign of an...
    Case 1
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    AP lumbar spine
    Case 2
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    Case 3
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    AP radiograph
    Case 4
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    Case 5
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    Case 6
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    Case 7
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    Case 8
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    Case 9
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    Case 10
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    Dagger spine asso...
    Case 11
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    There is a single...
    Case 12
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