Occipitalisation of atlas

Definition

A condition caused by failure of the atlas and occiput to correctly develop during the antenatal period. This condition is characterised by fusion of the atlas to the base of the occiput. This condition may present with headache, suboccipital stiffness, restricted motion, or dizziness. Confirmation is through observation of the fusion by imaging.

Also indexed as

Nearby in Structural developmental anomalies of spine

• LB73.20Klippel-Feil anomaly
• LB73.22Atlanto-axial instability or subluxation
• LB73.23Aplasia or hypoplasia of the odontoid process of axis
• LB73.24Segmentation anomalies of vertebrae
• LB73.25Congenital scoliosis due to congenital bony malformation
• LB73.26Sacralisation of the last lumbar vertebra
• LB73.27Lumbarisation of the first sacral vertebra
• LB73.28Sacrum agenesis or hypoplasia