Bilateral facial nerve schwannomas

Fenton, John E.; Morrin, Martina; Smail, Mustapha; Sterkers, Olivier; Sterkers, J M

doi:10.1007/s004050050125

Cited by 22 publications

(11 citation statements)

References 9 publications

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“…Although the estimate prevalence is extremely low (1), FNS are the most common primary tumor of the facial nerve (FN) (2). No clear treatment consensus has been developed because of the infrequent presentation of these slow-growing benign tumors.…”

mentioning

confidence: 99%

Facial Nerve Outcomes in Facial Nerve Schwannomas

McRackan

Rivas²,

Wanna³

et al. 2012

Otology &Amp; Neurotology

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mentioning

confidence: 99%

Facial Nerve Outcomes in Facial Nerve Schwannomas

McRackan

Rivas²,

Wanna³

et al. 2012

Otology &Amp; Neurotology

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“…23 There are isolated reports of dissecting the tumor from the nerve and obtaining normal or adequate functional outcomes. 2,9,24,25 In our Case 2, the facial trunk was preserved. The facial nerve was easily identifed because the tumor originated from the chorda tympani.…”

Section: Discussionmentioning

confidence: 56%

Facial Nerve Neuroma: Clinical, Diagnostic, and Surgical Features

et al. 2004

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Facial nerve neuromas are uncommon benign tumors. The diversity of tumor locations and their proximity to vital neurovascular structures create a variety of clinical situations, and the management strategy for each case differs. Two cases with tumors located at different sites and associated with different clinical presentations are discussed in terms of diagnosis and management.KEYWORDS: Neuroma, facial nerve, chorda tympani, paralysis Facial nerve neuromas are uncommon benign neoplasms of Schwann cells. They compose only 0.8% of all intrapetrous mass lesions. 1 More than 300 cases have been reported since they were described by Schmidt in 1930. 2 These tumors can arise from any segment of the nerve from the cerebellopontine angle to the extratemporal peripheral portion. 3,4 The diversity of locations involved with the tumor and their proximity to the auditory apparatus can create a variety of clinical situations. 4 Thus, the site of the tumor, its extension, and the way it involves the surrounding structures determine the surgical approach.This article presents two cases of facial nerve neuroma involving different locations and clinical manifestations, focusing on the diagnostic and therapeutic problems encountered. CASE REPORTS Case 1A 38-year-old woman sought treatment for left facial paralysis, dizziness, and hearing loss and tinnitus in her left ear that had been present for about 1 year. Otoscopy revealed an intact tympanic membrane. A reddish mass was seen behind the tympanic mass. Neurological examination revealed total facial paralysis (i.e., House-Brackmann grade VI). Pure-tone audiometry indicated unilateral sensorineural hearing loss in the left ear with airand bone-conduction thresholds elevated to 60 dB hearing loss. The tympanogram was type-B on the left side. The acoustic reflex was absent to acoustic stimuli on the left side. Computerized tomography

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“…He used the MCF approach combined with the transmastoid approach for many of the patients in his original series. Other series have reported the combined approach as well 3,8,12 . However, MCF alone for tumor debulking has been sparsely reported in the literature 3,12 .…”

Section: Discussionmentioning

confidence: 99%

“…Other series have reported the combined approach as well 3,8,12 . However, MCF alone for tumor debulking has been sparsely reported in the literature 3,12 . Sherman et al reported on a series of patients in which only one patient had a subtemporal approach for tumor debulking.…”

Section: Discussionmentioning

confidence: 99%

Surgical Management of Internal Auditory Canal and Cerebellopontine Angle Facial Nerve Schwannoma

Mowry

Hansen

Gantz

2012

Otology &Amp; Neurotology

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Objective To investigate the long-term patient outcomes following tumor debulking for internal auditory canal facial schwannoma (FNS). Study Design retrospective case review Setting Tertiary referral center Patients Patients operated on between 1998–2010 for a preoperative diagnosis of vestibular schwannoma with the intraoperative identification FNS instead. Intervention diagnostic and therapeutic Main Outcome Measures House-Brackmann facial nerve score immediately and at long term follow up (>1 yr); recurrence of tumor. Results 16 patients were identified who were presumed to have vestibular schwannoma but intraoperatively were diagnosed with facial nerve schwannoma. Eleven underwent debulking surgery (67%–99% tumor removal), 2 underwent decompression only, 2 were diagnosed with nervus intermedius tumors and had total tumor removal with preservation of the motor branch of CN VII, 1 had complete tumor removal with facial nerve grafting. Five of 11 debulking patients underwent the MCF approach for tumor removal; the remainder had translabyrinthine resections. One debulking patient was lost to follow-up. Nine of 10 patients with long term follow up had H/B grade I or II facial function. One patient had recurrence of the tumor that required revision surgery with total removal and facial nerve grafting. Conclusions Tumor debulking for FNS provides an opportunity for tumor removal and excellent facial nerve function. Continuous facial nerve monitoring is vital for successful debulking surgery. FNS debulking is feasible via the MCF approach. Serial postoperative imaging is warranted to monitor for recurrence.

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Bilateral facial nerve schwannomas

Cited by 22 publications

References 9 publications

Facial Nerve Outcomes in Facial Nerve Schwannomas

Facial Nerve Outcomes in Facial Nerve Schwannomas

Facial Nerve Neuroma: Clinical, Diagnostic, and Surgical Features

Surgical Management of Internal Auditory Canal and Cerebellopontine Angle Facial Nerve Schwannoma

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