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Case Reports
. 2007 Sep;17(5):325-30.
doi: 10.1055/s-2007-986437.

Intracranial/Extracranial meningioma arising in the hypoglossal canal: case report

Michel Neeff  1 , Elif Baysal, Jarrod Homer, James Gillespie, Richard Ramsden
Affiliations
Case Reports

Intracranial/Extracranial meningioma arising in the hypoglossal canal: case report

Michel Neeff et al. Skull Base. 2007 Sep.

Abstract

A case of a patient with a posterior fossa meningioma extending through the hypoglossal canal to the cervical region as described in this article has not been previously described in the literature. Investigations and surgical management are outlined and pathological classifications are discussed. A literature review including recent reports of extracranial meningiomas is presented. Extracranial meningiomas are exceedingly rare and a high index of suspicion is necessary to make the diagnosis.

Keywords: Extracranial meningioma; carotid artery occlusion; meningioma classification; posterior fossa meningioma; thyroplasty.

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Figures

Figure 1
Figure 1
Contrast-enhanced (A) coronal and (B) axial T1-weighted magnetic resonance images. (A) The tumor is seen above and below the skull base (white arrows) extending through the hypoglossal canal (black arrows) into the neck. (B) The parapharyngeal component (white arrows) is seen encasing the cervical carotid artery (black arrow).
Figure 2
Figure 2
An angiogram (lateral view) of a balloon-test occlusion of the right internal carotid artery. The position of the inflated balloon is indicated (arrows).
Figure 3
Figure 3
Anteroposterior view of a cerebral angiogram; the right internal carotid artery is occluded by intravascular coils (black arrows); collateral blood supply from the left internal carotid artery (white arrow) is seen filling the right anterior and middle cerebral arteries.
See this image and copyright information in PMC

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