Third condyle

Case contributed by Dr Craig Hacking

Presentation

Minor MVA.

Patient Data

Age: 20 years
Gender: Female
CT

Alignment is normal. No fracture identified. Incidental small ossicle between the basion and the tip of the C2 odontoid process in the midline. A V-shaped defect in the anterior foramen magnum (best seen in the coronal images) is noted.

Case Discussion

This incidental ossicle represents a small 'third condyle', a normal anatomic variant.

A V-shaped defect in the anterior foramen magnum (best seen in the coronal images) represents the origin of this developmental variant.

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Case information

rID: 56773
Case created: 21st Nov 2017
Last edited: 22nd Nov 2017
Inclusion in quiz mode: Included

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