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A vestibular schwannoma (VS), also called acoustic neuroma, is a benign tumor that develops on the vestibulocochlear nerve that passes from the inner ear to the brain. The tumor originates when Schwann cells that form the insulating myelin sheath on the nerve malfunction. Normally, Schwann cells function beneficially to protect the nerves which ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 15 January 2025. Neoplasm in the brain Medical condition Brain tumor Other names Intracranial neoplasm, brain tumour, brain cancer Brain metastasis in the right cerebral hemisphere from lung cancer, shown on magnetic resonance imaging Specialty Neurosurgery, neuro-oncology Symptoms Vary depending on the ...
A common subtype is the vestibular schwannoma (acoustic neuroma). [5] ... The 5-year survival rate for nonmalignant meningiomas is approximately 91%. [9] Pediatric
NF2 is a genetically transmitted condition. Diagnosis is most common in early adulthood (20–30 years); however, it can be diagnosed earlier. NF2 can be diagnosed due to the presence of a bilateral vestibular schwannoma, or an acoustic neuroma, which causes a hearing loss that may begin unilaterally. [14]
The age-adjusted incidence rate is 6.4 per 100,000 per year, and the death rate is 4.3 per 100,000 per year. The lifetime risk of developing brain cancer for someone born today is 0.60%. Only around a third of those diagnosed with brain cancer survive for five years after diagnosis.
Prior to the translabyrinthine approach, in the early 1960s acoustic neuromas were treated utilizing a suboccipital approach without the aid of an operating microscope. With the introduction of the translabyrinthine approach, mortality rates decreased from 40% in the State of California to 1%.
Post-surgical radiotherapy has shown some promise in improving recurrence-free survival in intermediate and high grade tumors. [1] Chemotherapy for malignant spinal nerve sheath tumors has shown mixed results and is typically only used in patients in which surgery is not an option, or with aggressive or metastatic disease. [1]
There are conflicting studies on the association between acoustic neuromas and cellular phone use and repeated exposure to loud noise. In 2011, an arm of the World Health Organization released a statement listing cell phone use as a low grade cancer risk. The Acoustic Neuroma Association recommends that cell phone users use a hands-free device.
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