Schwannomas of the greater superficial petrosal nerve - case series, discussion of surgical techniques, and review of literature.
Greater superficial petrosal nerve
Middle cranial fossa
Neurosurgical oncology
Operative technique
Schwannoma
Skull base
Journal
BMC neurology
ISSN: 1471-2377
Titre abrégé: BMC Neurol
Pays: England
ID NLM: 100968555
Informations de publication
Date de publication:
09 Dec 2022
09 Dec 2022
Historique:
received:
24
01
2022
accepted:
28
10
2022
entrez:
9
12
2022
pubmed:
10
12
2022
medline:
15
12
2022
Statut:
epublish
Résumé
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. 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. 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.
Sections du résumé
BACKGROUND
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
METHODS
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
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.
Identifiants
pubmed: 36494617
doi: 10.1186/s12883-022-02960-3
pii: 10.1186/s12883-022-02960-3
pmc: PMC9733176
doi:
Types de publication
Review
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
470Informations de copyright
© 2022. The Author(s).
Références
AJNR Am J Neuroradiol. 1996 Feb;17(2):389-93
pubmed: 8938317
Br J Neurosurg. 2002 Oct;16(5):448-55
pubmed: 12498487
Br J Neurosurg. 1996 Oct;10(5):519-23
pubmed: 8922716
J Neurosurg. 1987 Oct;67(4):488-99
pubmed: 3655886
Neurosurg Rev. 2010 Apr;34(2):159-71
pubmed: 20963463
J Neurosurg. 2016 Feb;124(2):403-10
pubmed: 26361275
J Neurosurg. 2007 Jul;107(1):181-4
pubmed: 17639892
Neurosurgery. 2006 Oct;59(4 Suppl 2):ONS270-7; discussion ONS277-8
pubmed: 17041497
AJNR Am J Neuroradiol. 2006 Mar;27(3):694-9
pubmed: 16552018
J Neurosurg. 1999 Oct;91(4):691-6
pubmed: 10507395
Neurosurg Rev. 2010 Oct;33(4):477-82
pubmed: 20668903
Am J Surg Pathol. 1981 Dec;5(8):733-44
pubmed: 7337161
J Neurosurg. 2002 Mar;96(3):453-63
pubmed: 11883829
J Neurosurg. 1960 Jul;17:721-35
pubmed: 13825709
World Neurosurg. 2016 Jan;85:364.e5-10
pubmed: 26341443
Otolaryngol Head Neck Surg. 2000 Feb;122(2):302-3
pubmed: 10652411
J Neurosurg. 1999 Aug;91(2):202-11
pubmed: 10433308
No Shinkei Geka. 2007 Jun;35(6):591-8
pubmed: 17564052
J Neurol Surg A Cent Eur Neurosurg. 2020 Nov;81(6):565-570
pubmed: 32361981
J Neurol Surg B Skull Base. 2016 Aug;77(4):371-8
pubmed: 27441164
JAMA. 2013 Nov 27;310(20):2191-4
pubmed: 24141714
J Neurosurg. 2010 Nov;113(5):1093-8
pubmed: 19835468
Surg Neurol Int. 2011;2:60
pubmed: 21697967
Neurol India. 2011 Sep-Oct;59(5):786-8
pubmed: 22019683
Acta Neurochir (Wien). 2005 Jun;147(6):659-63; discussion 663
pubmed: 15666034
Br J Neurosurg. 2015 Apr;29(2):213-8
pubmed: 25372896
Neurosurgery. 2001 Oct;49(4):999-1003; discussion 1003-4
pubmed: 11564265
Skull Base. 2001 Feb;11(1):77-80
pubmed: 17167605
World Neurosurg. 2019 Feb;122:85-89
pubmed: 30391603
J Neurosurg. 2015 Aug;123(2):387-94
pubmed: 25955875
Surg Neurol. 2009 May;71(5):586-96; discussion 596
pubmed: 18617228
Zentralbl Neurochir. 1959;19:49-59
pubmed: 14409746
Neurosurg Focus. 2008;25(6):E6; discussion E6
pubmed: 19035703
Acta Neurochir (Wien). 2007;149(9):959-63; discussion 964
pubmed: 17534571
Neurosurgery. 2008 Oct;63(4):E813-4; discussion E814
pubmed: 18981849
J Neurosurg. 1995 May;82(5):711-8
pubmed: 7714594
J Neurosurg. 2004 Apr;100(4):695-9
pubmed: 15070125