Abstract
Trigeminal schwannomas (TSs) are rare, slow-growing tumors that account for less than 0.5% of all intracranial tumors. After the vestibular nerve, the trigeminal nerve (cerebellopontine angle) and the Gasserian ganglion (cavernous sinus and Meckel’s cave) are the most common sites for intracranial schwannomas. The clinical presentation of trigeminal schwannoma depends on the size and location of the tumor. Typical symptoms include ipsilateral hypesthesia, headache, and facial pain. Diagnosis is usually made according to clinical features and imaging findings. The most definitive treatment for TSs is microsurgical removal, especially for large tumors with significant mass effect on the brainstem. Postoperative preservation of trigeminal nerve function is possible when resection of the lesion is performed at a well-established skull base neurosurgical center. Although good results have been reported with radiosurgery, patients should be informed of the risk of recurrence and the limited symptomatic relief that it provides. Familiarity with a wide variety of skull base approaches and the advantages and limitations of each approach is critical for the successful microsurgical treatment of trigeminal schwannomas.
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Abbreviations
- CN:
-
cranial nerve
- CP:
-
cerebellopontine
- CSF:
-
cerebrospinal fluid
- CT:
-
computed tomography
- CTA:
-
computed tomography angiography
- MR:
-
magnetic resonance
- SRS:
-
stereotactic radiosurgery
- TS:
-
trigeminal schwannoma
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Huff, W., Hendricks, B.K., Cohen-Gadol, A.A. (2022). Trigeminal Schwannoma. In: Youssef, A.S. (eds) Contemporary Skull Base Surgery. Springer, Cham. https://doi.org/10.1007/978-3-030-99321-4_29
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