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Arcuate foramen

Case contributed by Ian Bickle
Diagnosis certain

Presentation

RTA. Neck pain.

Patient Data

Age: 15 years
Gender: Female
x-ray

Well defined foramen of the atlas well illustarted on the lateral film.

x-ray

The arcuate foramen is contained within the circle annotation.

Case Discussion

The arcuate foramen atlantis is a anatomical variant of the atlas (C1).

It arises due to calcification of the oblique atlanto-occipital ligaments. The vertebral arteries pass through this foramen.

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