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DOI: 10.1055/s-0045-1810018
Oculomotor Synkinesis Secondary to Meningocele: Report of a Rare Case

Abstract
Oculomotor synkinesis or aberrant regeneration of cranial nerve III (CN III) typically results from trauma, aneurysm, or mass lesions. We present a rare case report with CN III palsy and synkinesis secondary to a meningocele in the left oculomotor cistern, causing mass effect on the oculomotor nerve. Imaging suggested underlying idiopathic intracranial hypertension (IIH) as a potential etiology. While mass lesions or trauma are common causes of oculomotor synkinesis, an association with meningocele has not been previously reported. This case highlights the importance of considering IIH-related meningoceles in unexplained CN III palsies.
Keywords
oculomotor nerve - synkinesis - aberrant regeneration - meningocele - idiopathic intracranial hypertensionAuthors' Contributions
B.W.: writing the article, data collection, and image processing.
K.A.M.: revising the article, image processing.
L.F.F.: editing, reviewing, and supervision.
N.S.: conceptualization, writing, editing, and supervision.
Patient's Consent
Patient's consent has been taken for this study.
Publication History
Article published online:
10 July 2025
© 2025. Indian Radiological Association. 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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References
- 1 Atalay B, Gedik S, Caner H, Oto S, Bavbek M, Altinors N. Aberrant regeneration of the third cranial nerve in a patient with severe head injury. Turk Neurosurg 2003; 13: 49-52
- 2 Sibony PA, Lessell S, Gittinger Jr JW. Acquired oculomotor synkinesis. Surv Ophthalmol 1984; 28 (05) 382-390
- 3 Weber ED, Newman SA. Aberrant regeneration of the oculomotor nerve: implications for neurosurgeons. Neurosurg Focus 2007; 23 (05) E14
- 4 Chua HC, Tan CB, Tjia H. Aberrant regeneration of the third nerve. Singapore Med J 2000; 41 (09) 458-459
- 5 Mangalore S, Rakshith S, Srinivasa R. Solving the riddle of “idiopathic” in idiopathic intracranial hypertension and normal pressure hydrocephalus: an imaging study of the possible mechanisms - Monro-Kellie 3.0. Asian J Neurosurg 2019; 14 (02) 440-452
- 6 Martins C, Yasuda A, Campero A, Rhoton Jr AL. Microsurgical anatomy of the oculomotor cistern. Neurosurgery 2006; 58 (4, Suppl 2): ONS-220-ONS-227 , discussion ONS-227–ONS-228
- 7 Friedman DI. The pseudotumor cerebri syndrome. Neurol Clin 2024; 42 (02) 433-471