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CC BY-NC-ND 4.0 · Asian J Neurosurg
DOI: 10.1055/s-0045-1813705
Case Report

Abducens Nerve Schwannoma: A Case Report on Extremely Rare Cranial Nerve Tumor

Authors

  • Tushar V. Soni

    1   Department of Neurosurgery, Smt. NHL Municipal Medical College, Ahmedabad, Gujarat, India

  • Shreyansh Patel 

    1   Department of Neurosurgery, Smt. NHL Municipal Medical College, Ahmedabad, Gujarat, India
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Abstract

Abducens nerve (CN VI) schwannomas are exceedingly rare intracranial tumors, constituting less than 10% of all primary cranial nerve schwannomas. This report details the case of a 30-year-old woman presenting with diplopia and progressive visual deterioration due to an abducens nerve schwannoma. Imaging revealed an extra-axial lesion involving the right cavernous sinus and encasing the right internal carotid artery. Surgical resection via frontotemporal craniotomy achieved near-total tumor removal, with histopathological analysis confirming a benign schwannoma. Postoperatively, the patient exhibited persistent right lateral rectus palsy as preoperative status but improvement in diplopia. This case underscores the rarity of abducens nerve schwannomas, the challenges in achieving complete resection due to neurovascular adherence, and the importance of careful surgical planning for optimal patient outcomes.

Keywords

abducens nerve - cavernous sinus - diplopia - lateral rectus palsy - schwannoma


Publication History

Article published online:
05 January 2026

© 2026. Asian Congress of Neurological Surgeons. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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