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Anterior Arch of Atlas Fissure-CT

This 8 yr old child had minor injury and then was unable to rotate his neck. Anterior arch of the atlas appears congenitally split and shows 5mm gap in the anterior arch possibly indicating fissure in the anterior arch. Although, altantodental distance is maitained, there is some altered articulation in the atltanto-axial articulation.  Torticollis has been reported after minor trauma in patients with split atlas.  Reference- Torticollis of a Specific C1 Dislocation With Split Atlas. Spine: 15 June 2010 - Volume 35 - Issue 14 - pp E672-E675.

Anterior Arch of Atlas Fissure-CT Reviewed by Sumer Sethi on Tuesday, March 01, 2011 Rating: 5

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