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Vestibular schwannomas are commonly known as acoustic neuromas, which is a misnomer. The term vestibular schwannoma is preferred as these tumors most frequently arise from the vestibular portion of the vestibulocochlear nerve and arise from Schwann cells 13. A mixture of the terms, acoustic schwannoma, may also be seen.
Vestibular schwannomas, also known as acoustic neuromas, are relatively common tumours that arise from the vestibulocochlear nerve (CN VIII) and represent ~80% of cerebellopontine angle (CPA) masses. Bilateral vestibular schwannomas are strongly suggestive of neurofibromatosis type 2 (NF2).
Schwannomas, less commonly called neurinomas or neurilemmomas, are benign tumors of Schwann cell origin and are the most common tumor of peripheral nerves, including cranial nerves. This article provides a general overview of schwannomas.
Intracranial schwannomas, also referred to as neurinomas, are common benign tumors, accounting for 6-8% of all intracranial tumors, with the vast majority arising from the vestibular division of the vestibulocochlear cranial nerve 1.
Facial nerve schwannoma, also known as facial nerve neuroma/neurilemoma, is a schwannoma that arises from the facial nerve. They are generally uncommon, and when involving the temporal bone, make up less than 1% of all temporal bone tumors.
The vast majority of schwannomas are sporadic, with a peak presentation in the 5 th to 6 th decades. There is no sex predilection 9. When they occur in patients with neurofibromatosis type 2 (NF2), schwannomas usually present by the 3 rd decade 4.
Vestibular schwannomas, also known as acoustic neuromas, are relatively common tumors that arise from the vestibulocochlear nerve (CN VIII) and represent ~80% of cerebellopontine angle (CPA) masses. Bilateral vestibular schwannomas are strongly suggestive of neurofibromatosis type 2 (NF2).
Vestibular schwannoma is a benign nerve sheath tumor based on the vestibulocochlear nerve. Although benign, it represents a threat to the intracranial structures due to its mass effect and risk of malignant transformation.
Spinal schwannomas are benign nerve sheath tumors within the spinal canal, typically arising from spinal nerve roots and it is the most common nerve sheath tumor of spine 11. They are one of the two most common intradural extramedullary spinal tumors, representing 15-50% of such lesions.
Mahmoud Q, Vestibular schwannoma. Case study, Radiopaedia.org (Accessed on 16 May 2024) https://doi.org/10.53347/rID-183765