Management of intratemporal facial nerve schwannomas: The evolution of treatment paradigms from 2000-2015

Facial nerve schwannoma: Case report and brief review of the literature

“…Treatment of FNS depends on the degree of symptoms, commonly using the House Brackman (HB) scale which considers facial nerve palsy severity [35] . With mild hearing loss and/or normal facial nerve function with a HB score of 1 or 2, observation and serial imaging to monitor is adequate to avoid the complications of further intervention [26 , 36 , 37] . The key feature to treatment is maintaining or improving facial nerve functionality, so if there is no compression of cranial structures or worsening paralysis, it is safer to follow up and monitor [10] .…”

“…Therefore, in lesions with a volume of less than 1 cm 3 , early intervention with gamma knife radiosurgery may be a preferred management as opposed to observation due to the potential conservation of facial nerve functionality [38] . FNS with more severe hearing loss, impingement on the bone, and facial paralysis can be offered debulking surgery, radiotherapy, and resection with nerve grafting [37] . Multiple studies suggest that HB grade 3 may be the most adequate level for evaluation of more invasive therapy, with the recommendation increasing as HB grade increases [10 , 13 , 40] .…”

Schwannoma of the Zygomatic Branch of the Facial Nerve

“…Nikolaos Tsetsos https://orcid.org/0000-0003-1884-6824 Alexandros Poutoglidis https://orcid.org/0000-0002-4591-8347 Konstantinos Garefis https://orcid.org/0000-0003-3905-5650 tinnitus, and facial nerve dysfunction. 6 Generally, the preoperative diagnosis of an FNS is challenging. 1 Neurofibroma, granular cell tumors, lipoma, fibroma, leiomyoma, and salivary gland tumors should be taken under consideration for the differential diagnosis of the extratemporal tumors.…”

“…1 Most common symptoms of an intratemporal FNS are sensorineural hearing loss, vertigo, tinnitus, and facial nerve dysfunction. 6 Generally, the preoperative diagnosis of an FNS is challenging. 1 Neurofibroma, granular cell tumors, lipoma, fibroma, leiomyoma, and salivary gland tumors should be taken under consideration for the differential diagnosis of the extratemporal tumors.…”