Contralateral Upper Motor Neuron Facial Palsy in a Case of Vestibular Schwannoma: A Consequence of an Underrecognized Anatomical Entity

Shreyash Rai; Ashutosh Kumar; Soumen Kanjilal; Arun K. Srivastava; Kuntal Kanti Das; Mayank Singh

doi:10.1055/s-0045-1809905

Indian Journal of Neurosurgery, Table of Contents

CC BY 4.0 · Indian Journal of Neurosurgery
DOI: 10.1055/s-0045-1809905

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Contralateral Upper Motor Neuron Facial Palsy in a Case of Vestibular Schwannoma: A Consequence of an Underrecognized Anatomical Entity

Authors

Shreyash Rai

¹Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute, Lucknow, Uttar Pradesh, India
Ashutosh Kumar

¹Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute, Lucknow, Uttar Pradesh, India
Soumen Kanjilal

¹Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute, Lucknow, Uttar Pradesh, India
Arun K. Srivastava

¹Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute, Lucknow, Uttar Pradesh, India
Kuntal Kanti Das

¹Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute, Lucknow, Uttar Pradesh, India
Mayank Singh

¹Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute, Lucknow, Uttar Pradesh, India

Abstract

Neurological deficits due to vestibular schwannoma (VS) result from either direct compression on the ipsilateral long tracts and cranial nerves, or strain over the contralateral cranial nerves due to angular distortion. However, the occurrence of a contralateral isolated upper motor neuron (UMN) facial palsy in a case of VS is a rare phenomenon, presenting as a clinical localization puzzle. This is the first case report of a contralateral isolated UMN facial palsy due to VS, elucidating the plausible pathophysiological mechanism.

Keywords

Upper motor neuron facial palsy - vestibular schwannoma - aberrant pyramidal tract

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References

References
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