Schwannomas of the greater superficial petrosal nerve – case series, discussion of surgical techniques, and review of literature

Bibliographic Details
Title: Schwannomas of the greater superficial petrosal nerve – case series, discussion of surgical techniques, and review of literature
Authors: A. Kaywan Aftahy, Maximilian Groll, Arthur Wagner, Melanie Barz, Denise Bernhardt, Stephanie E. Combs, Bernhard Meyer, Jens Gempt, Chiara Negwer
Source: BMC Neurology, Vol 22, Iss 1, Pp 1-14 (2022)
Publisher Information: BMC, 2022.
Publication Year: 2022
Collection: LCC:Neurology. Diseases of the nervous system
Subject Terms: Greater superficial petrosal nerve, Middle cranial fossa, Neurosurgical oncology, Operative technique, Schwannoma, Skull base, Neurology. Diseases of the nervous system, RC346-429
More Details: Abstract Background Facial nerve schwannomas account for about 0.8% of all petrous mass lesions. Schwannomas of the greater superficial petrosal nerve (GSPN) are a rare subtype with few case-reports up to date. Case presentations A retrospective analysis of clinical outcomes, radiographic findings and postoperative complication between June 2007 and December 2020 was performed. Four cases of GSPN schwannomas were reported. The presenting symptoms were facial nerve palsy and hearing loss. Imaging studies showed a subtemporal mass on the anterosuperior aspect of the petrous bone, in one case with extraordinary petrous bone and mastoid infiltration and destruction. Three cases were removed through a subtemporal extra- or intradural approach, one case via a combined pre- and retrosigmoid approach. Improvement of facial nerve palsy occurred in one case; new hearing loss was observed in another case. Xeropthalmia was a short-term temporary deficit in three cases. Short- to mid-term follow-up of the patients has not shown any tumor recurrence. Conclusions GSPN schwannomas are rare entities presenting with heterogenous symptoms. Our surgical findings emphasize safe resection. Complete remission is possible by GTR. Since the small data set limits the expressiveness of statements regarding standard of care and alternative therapy options, additional data is needed.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1471-2377
Relation: https://doaj.org/toc/1471-2377
DOI: 10.1186/s12883-022-02960-3
Access URL: https://doaj.org/article/484f2d11349e48469495c89b67a94426
Accession Number: edsdoj.484f2d11349e48469495c89b67a94426
Database: Directory of Open Access Journals
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More Details
ISSN:14712377
DOI:10.1186/s12883-022-02960-3
Published in:BMC Neurology
Language:English