Vertebral anomalies

The vertebral column is affected by a range of anatomical variants of the body and/or neural arch as well as accessory ossicles. Knowledge of basic vertebral anatomy and ossification is essential for describing and understanding the range of anomalies.

Variant anatomy

Vertebral body
Neural arch
Spinous process
Accessory ossicles


Vertebral anomalies can occur with numerous syndromic as well as non-syndromic conditions including:

Anatomy: Spine
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Article information

rID: 2264
Synonyms or Alternate Spellings:
  • Vertebral anomalies
  • Vertebral anomaly
  • Congenital vertebral anomalies
  • Congenital vertebral abnormalities
  • Congenital vertebral abnormality
  • Congenital vertebral anomaly
  • Vertebral anatomical variation

Cases and figures

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    Case 1: hemivertebra
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    Case 2: hemivertebra with scoliosis
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    Butterfly vertebra
    Case 3: butterfly vertebra
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    Case 4: block vertebrae
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    Case 5: unfused C1 arches
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