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Imaging Features of isolated hypoglossal nerve palsy
Angela Guarnizo1, Rafael Glikstein2, Carlos Torres2
1Neuroradiology Fellow, University of Ottawa - The Ottawa Hospital, Ottawa, Canada.
Abstract:
The hypoglossal nerve gives motor innervation to the intrinsic and extrinsic muscles of the tongue. Pathology of this nerve affects the balanced action of the genioglossus muscle causing tongue deviation toward the weak side. Clinically, hypoglossal nerve palsy manifests with difficulty chewing, swallowing and with dysarthric speech herein, we review the anatomy of the hypoglossal nerve as well as common and infrequent lesions that can affect this nerve along its course.
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