Middle cranial fossa schwannoma of the facial nerve

Dolenc, Vinko V.; Koršić, Marijan

doi:10.1080/02688699647203

Cited by 18 publications

(13 citation statements)

References 26 publications

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“…20,27-31 These include juvenile angiofibromas, epidermoid tumours, dermoid tumours, chondromyxofibromas, giant cell tumours and cavernous haemangiomas and schwannomas of other cranial nerves. 20,[27][28][29][30][31]35,37,38 In our experience, the surgical outcome in patients with non-meningeal tumours of the cavernous sinus depends on the biological behaviour and patho-anatomical location of the lesion. Some benign tumours of this region, such as schwannomas and cavernous haemangiomas, tend to be well circumscribed and spare neurovascular structures within the sinus.…”

Section: Discussionmentioning

confidence: 98%

Non-meningeal tumours of the cavernous sinus: A surgical analysis

Pamir

Kılıç

Özek

et al. 2006

Journal of Clinical Neuroscience

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Section: Discussionmentioning

confidence: 98%

Non-meningeal tumours of the cavernous sinus: A surgical analysis

Pamir

Kılıç

Özek

et al. 2006

Journal of Clinical Neuroscience

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“…The latter is mostly conductive secondary to tympanic cavity extension of the tumor,[571213161721] but if the inner ear or cochlear nerve are involved, there may be also a sensorineural hearing loss. [4201319] In fact, Sade et al . [19] described a case with only low-frequency hearing loss because of a tumor which, growing from GPN, involved the cochlear apex.…”

Section: Discussionmentioning

confidence: 99%

“…[41318–2022] These particular tumors can arise from any segment of the nerve, but lesions originating from the greater petrosal nerve (GPN) are infrequently described.…”

Section: Introductionmentioning

confidence: 99%

A rare case of greater petrosal nerve schwannoma

Paulis

Cola²,

Marzi³

et al. 2011

Surg Neurol Int

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Background:Facial nerve schwannomas include only 0.8% of all intrapetrous mass lesions, and schwannomas originating exclusively from the greater petrosal nerve (GPN) are extremely rare. To date, only 13 reports have been described. In this case, the tumor was thought to originate from the GPN on the basis of clinical, radiological, and operative findings.Case Description:A 23-year-old girl presented an acute left facial palsy, a disturbance in tear secretion of the ipsilateral eye, and a left-sided conductive hypoacusia. Computed tomography (CT) scan and magnetic resonance imaging (MRI) showed an extradural mass in the left middle fossa. A subtemporal approach was performed and the lesion, originating from the proximal portion of the GPN, was excised. The post-operative course was satisfactory, except for a xerophtalmia, which was treated with artificial teardrops.Conclusion:GPN schwannomas can originate anywhere alongside the course of the nerve, from its proximal segment near the facial hiatus to its distal segment near the foramen lacerum. For these reasons, it requires differential diagnosis with trigeminal nerve schwannomas or with injuries arising from the geniculate ganglion, because it can be easily confused with those lesions. However, in less severe cases, an early diagnosis can be able to preserve the function of the facial nerve by reducing iatrogenic injuries caused by surgical maneuvers.

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“…[4][5][6][7][8][12][13][14]16 GPN schwannomas are found within the interdural space of the middle fossa. The advantage of the epidural approach is landmarks and important structures such as the facial nerve and tympanic cavity.…”

Section: Surgerymentioning

confidence: 99%