Foramen magnum meningioma

Case contributed by Dr Mostafa Mahmoud El Feky

Presentation

Headache, neck pain.

Patient Data

Age: 60 years
Gender: Female
MRI

MRI Brain with contrast

A well defined dural-based space occupying lesion is noted lying on the posterior aspect of the foramen magnum and the posterior neural arch of atlas with no bony invasion. It is opposite to and compressing the cervico-medullary junction of the spinal cord and displacing it to the anterolateral aspect of the foramen magnum. It displays iso-intense signal in T1 WI and hypo-intense signal in T2 WI. It showed homogeneous enhancement in contrast enhanced T1 WI. 

Case Discussion

For a dural based homogeneously enhancing lesion, meningioma is the most likely differential and the foramen magnum if one of its recognised, albeit less common, sites.

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Case information

rID: 49267
Case created: 17th Nov 2016
Last edited: 9th Jan 2017
Inclusion in quiz mode: Included

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