Vertebral anomalies

Last revised by Ciléin Kearns on 10 Jan 2023

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
Transverse process
Accessory ossicles


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

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