Syndesmophytes are calcifications or heterotopic ossifications inside a spinal ligament or of the annulus fibrosus.​ They are seen in only a limited number of conditions including: 

Radiographic features

Appearance on plain radiographs comprises vertical and symmetrical calcification of the lateral margins of the intervertebral disc space. 

See also

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Article information

rID: 26989
Section: Gamuts
Synonyms or Alternate Spellings:
  • Syndesmophytes in bone
  • Differential diagnosis of syndesmophytes

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Cases and figures

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    Case 1: ochronosis
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    AP radiograph
    Case 2: ankylosing spondylitis
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    Case 3: fluorosis
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