A unique variant of abducens nerve duplication in a case of a large vestibular schwannoma
Vestibular schwannomas (VS) are slow-growing benign tumors commonly found in the cerebellopontine angle, potentially compressing brain structures and cranial nerves, including the abducens nerve (AN), responsible for lateral gaze. Although large VSs may compress the AN, postsurgical AN palsy is rare...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-06-01
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| Series: | Interdisciplinary Neurosurgery |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214751923002293 |
| _version_ | 1797259909052497920 |
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| author | Ufuk Erginoglu Mario Wolak Junior Cagdas Ataoglu Abdullah Keles Mustafa K. Baskaya |
| author_facet | Ufuk Erginoglu Mario Wolak Junior Cagdas Ataoglu Abdullah Keles Mustafa K. Baskaya |
| author_sort | Ufuk Erginoglu |
| collection | DOAJ |
| description | Vestibular schwannomas (VS) are slow-growing benign tumors commonly found in the cerebellopontine angle, potentially compressing brain structures and cranial nerves, including the abducens nerve (AN), responsible for lateral gaze. Although large VSs may compress the AN, postsurgical AN palsy is rare, and the clinical significance of AN variations, particularly in VS cases, remains unclear. We report a unique case of a 29-year-old female with a large left vestibular schwannoma. The patient underwent a left-sided microsurgical two-stage excision with an uneventful recovery (House-Brackmann facial grade I). During surgery, a rare variant of the AN was identified. This AN originated as two separate trunks and merged 3 mm distal to its origin in the same segment. To the best of our knowledge, arising and merging in the cisternal segment of AN variation has not been reported previously. Recognizing AN variations is vital for successful skull base surgeries, especially in preserving both branches during vestibular schwannoma surgery and ensuring ocular function. |
| first_indexed | 2024-03-08T18:29:24Z |
| format | Article |
| id | doaj.art-0cbf034219434fa7a4ec7e4b683c7a26 |
| institution | Directory Open Access Journal |
| issn | 2214-7519 |
| language | English |
| last_indexed | 2024-04-24T23:16:55Z |
| publishDate | 2024-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Interdisciplinary Neurosurgery |
| spelling | doaj.art-0cbf034219434fa7a4ec7e4b683c7a262024-03-17T07:54:19ZengElsevierInterdisciplinary Neurosurgery2214-75192024-06-0136101946A unique variant of abducens nerve duplication in a case of a large vestibular schwannomaUfuk Erginoglu0Mario Wolak Junior1Cagdas Ataoglu2Abdullah Keles3Mustafa K. Baskaya4Department of Neurological Surgery, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53792, USADepartment of Neurological Surgery, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53792, USADepartment of Neurological Surgery, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53792, USADepartment of Neurological Surgery, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53792, USACorresponding author at: Department of Neurological Surgery, School of Medicine and Public Health, University of Wisconsin, Madison CSC K4/822, 600 Highland Avenue, Madison, WI 53792, USA.; Department of Neurological Surgery, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53792, USAVestibular schwannomas (VS) are slow-growing benign tumors commonly found in the cerebellopontine angle, potentially compressing brain structures and cranial nerves, including the abducens nerve (AN), responsible for lateral gaze. Although large VSs may compress the AN, postsurgical AN palsy is rare, and the clinical significance of AN variations, particularly in VS cases, remains unclear. We report a unique case of a 29-year-old female with a large left vestibular schwannoma. The patient underwent a left-sided microsurgical two-stage excision with an uneventful recovery (House-Brackmann facial grade I). During surgery, a rare variant of the AN was identified. This AN originated as two separate trunks and merged 3 mm distal to its origin in the same segment. To the best of our knowledge, arising and merging in the cisternal segment of AN variation has not been reported previously. Recognizing AN variations is vital for successful skull base surgeries, especially in preserving both branches during vestibular schwannoma surgery and ensuring ocular function.http://www.sciencedirect.com/science/article/pii/S2214751923002293Abducens nerveDuplicationVestibular schwannomaTranslabyrinthineRetrosigmoidVariation |
| spellingShingle | Ufuk Erginoglu Mario Wolak Junior Cagdas Ataoglu Abdullah Keles Mustafa K. Baskaya A unique variant of abducens nerve duplication in a case of a large vestibular schwannoma Interdisciplinary Neurosurgery Abducens nerve Duplication Vestibular schwannoma Translabyrinthine Retrosigmoid Variation |
| title | A unique variant of abducens nerve duplication in a case of a large vestibular schwannoma |
| title_full | A unique variant of abducens nerve duplication in a case of a large vestibular schwannoma |
| title_fullStr | A unique variant of abducens nerve duplication in a case of a large vestibular schwannoma |
| title_full_unstemmed | A unique variant of abducens nerve duplication in a case of a large vestibular schwannoma |
| title_short | A unique variant of abducens nerve duplication in a case of a large vestibular schwannoma |
| title_sort | unique variant of abducens nerve duplication in a case of a large vestibular schwannoma |
| topic | Abducens nerve Duplication Vestibular schwannoma Translabyrinthine Retrosigmoid Variation |
| url | http://www.sciencedirect.com/science/article/pii/S2214751923002293 |
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