Peripheral facial nerve schwannoma at the inferior mandibular margin: a case report
| Autor: | Masaya Akashi, Shunsuke Sakakibara, Junya Kusumoto, Takumi Hasegawa, Akiko Sakakibara, Daisuke Takeda |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
AcademicSubjects/MED00910
Case Report mental foramen Schwannoma Mental foramen marginal mandibular branch otorhinolaryngologic diseases percutaneous enucleation Medicine peripheral facial nerve Head and neck schwannoma Trigeminal nerve medicine.diagnostic_test business.industry Mandible Magnetic resonance imaging Anatomy medicine.disease Facial nerve Peripheral stomatognathic diseases jscrep/090 medicine.anatomical_structure Surgery business |
| Zdroj: | Journal of Surgical Case Reports |
| ISSN: | 2042-8812 |
| DOI: | 10.1093/jscr/rjab299 |
| Popis: | Schwannomas commonly occur in the head and neck region as acoustic neuromas. Facial nerve schwannomas are rare and usually occur in the temporal region. A 57-year-old woman presented with a mass at the right mandibular margin. Magnetic resonance imaging revealed a schwannoma located immediately caudal to the mental foramen. We were initially uncertain whether it arose from the trigeminal nerve or the facial nerve. Excision was performed under general anesthesia. The mass was encapsulated and easily detached from the surrounding tissue. The nerve of origin was identified proximal to the tumor. A facial nerve origin was confirmed as the muscles supplied by the marginal mandibular branch of the facial nerve moved on nerve stimulation. Nerve fibers were not found distal to the tumor, possibly because they had been cut during excision. We believe that this is the first report of a schwannoma arising from the peripheral facial nerve. |
| Databáze: | OpenAIRE |
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