vestibular schwannoma


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vestibular schwannoma

a benign but life-threatening tumor arising from Schwann cells, usually of the vestibular division of the eighth cranial nerve in early stage; produces hearing loss, tinnitus, and vestibular disturbances and in late stages cerebellar, brainstem, and other cranial nerve signs and increased intracranial pressure.

acoustic neuroma

A usually benign tumour of the 8th cranial nerve, which arises from the Schwann cells that sheathe the acoustic nerve.
 
Epidemiology
1:100,000; 8% are bilateral; 16% are associated with type-2 von Recklinghausen’s disease.
 
Diagnosis
Auditory evoked potentials, MRI, CT.
 
Management
Surgical removal by dissection, cautery, laser obliteration.

ves·tib·u·lar schwan·no·ma

(ves-tib'yū-lăr shwah-nō'mă)
A benign but life-threatening tumor arising from Schwann cells, usually of the vestibular division of the vestibulocochlear nerve; produces hearing loss; tinnitus; vestibular disturbances; early and cerebellar, brainstem, and other cranial nerve signs; and increased intracranial pressure in late stages.
References in periodicals archive ?
Hearing preservation and facial nerve outcomes in vestibular schwannoma surgery: results using the middle cranial fossa approach.
Betka J, Zverina E, Balogova Z, Profant O, Skrivan J, Kraus J et al: Complications of microsurgery of vestibular schwannoma.
Management of 1000 vestibular schwannoma (acoustic neuroma ) surgical management and results with an emphasis on complication and how to avoid them.
Natural History of Vestibular Schwannoma Growth and Hearing Decline in Newly Diagnosed Neurofibromatosis Type 2 Patients.
Vestibular schwannoma (VS) is a benign tumor arising from Schwann cells in the vestibular nerve.
One subject, who had nystagmus and trouble of gait, with hipoacusia of right ear, was found to have a right-sided vestibular schwannoma with impaired audio-vestibular function on the right side.
We report a rare case of contralateral hearing loss after vestibular schwannoma excision in a 48-year-old man who underwent surgery via a suboccipital approach for removal of a nearly 2-cm lesion involving the right cerebellopontine angle.
Screening for vestibular schwannoma by magnetic resonance imaging: analysis of 1821 patients.
Malignant transformation of a vestibular schwannoma after gamma knife radiosurgery.
It covers topics ranging from auditory brainstem implants to vestibular schwannoma, providing readers with a comprehensive overview of surgical procedures and techniques used to treat a variety of skull base diseases.