Accessory ossicle of the anterior arch of the atlas

Case contributed by Dr Matt Skalski

Presentation

Incidental finding

The abnormality depicted is well corticated and appears to articulate with the inferior aspect of the anterior arch of the atlas.

Modality: Diagram

Accessory ossicle of the anterior arch of the atlas.

Case Discussion:

Features compatible with accessory ossicle of the anterior arch of the atlas. This is a rare normal variant and should be DDXed with calcific tendinitis of the longus colli muscles. 

PlayAdd to Share
Case
Full screen case
Case with hidden diagnosis
Full screen case with hidden diagnosis

Case Information:

rID: 19583
Diagnostic certainty: Certain
System: Musculoskeletal
Inclusion in quiz mode: Included

Updating… Please wait.
Loadinganimation

Alert_accept

Error Unable to process the form. Check for errors and try again.

Alert_accept Thank you for updating your details.