A Unique Foramen Magnum with a Posterior Notch.

Abstract

The foramen magnum is an important structure of the skull base. A unique foramen magnum with posterior notching was found in an adult male skull, around 60 years old at death. The posterior notch was roughly V-shaped and resulted in posterior elongation of the foramen magnum. Variants such as described herein should be kept in mind when interpreting radiological imaging or operating on patients.