Imaging Features of isolated hypoglossal nerve palsy - 20/07/19

Doi : 10.1016/j.neurad.2019.04.006

Angela Guarnizo ^a, Rafael Glikstein ^b,^⁎ , Carlos Torres ^b
^a Neuroradiology Fellow, University of Ottawa – The Ottawa Hospital, Ottawa, Canada
^b Neuroradiologist, University of Ottawa – The Ottawa Hospital, Ottawa, Canada

^⁎Corresponding author at: University of Ottawa – The Ottawa Hospital. Radiology - Department of Medical Imaging. Box 232, General Campus Room 1466e. 501 Smyth road, Ottawa, ON. Canada.University of Ottawa – The Ottawa Hospital. Radiology - Department of Medical ImagingBox 232, General Campus Room 1466e. 501 Smyth roadOttawaONCanada

En prensa. Pruebas corregidas por el autor. Disponible en línea desde el Saturday 20 July 2019
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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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Keywords : Hypoglossal nerve, CT, MRI, Hypoglossal denervation