Neoplastic Process
acoustic neuroma
a·cous·tic neu·ro·ma [ uh-koo-stik noo-roh-muh, nyoo- ]
Subclass of:
Vestibulocochlear Nerve Diseases;
Otorhinolaryngologic Neoplasms;
Cranial Nerve Neoplasms;
Neurilemmoma
Also called:
8th Nerve Tumor; Acoustic neurilemmoma; Acoustic neurinoma; Auditory tumor; Vestibular schwannoma
Definitions related to acoustic neuroma:
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An acoustic neuroma is a benign tumor that develops on the nerve that connects the ear to the brain. The tumor usually grows slowly. As it grows, it presses against the hearing and balance nerves. At first, you may have no symptoms or mild symptoms. They can include Loss of hearing on one side; Ringing in ears; Dizziness and balance problems. The tumor can also eventually cause numbness or paralysis of the face. If it grows large enough, it can press against the brain, becoming life-threatening. Acoustic neuroma can be difficult to diagnose, because the symptoms are similar to those of middle ear problems. Ear exams, hearing tests, and scans can show if you have it. If the tumor stays small, you may only need to have it checked regularly. If you do need treatment, surgery and radiation are options. If the tumors affect both hearing nerves, it is often because of a genetic disorder called neurofibromatosis. NIH: National Institute on Deafness and Communication DisordersMedlinePlusU.S. National Library of Medicine, 2021
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(neuroma, acoustic) A benign SCHWANNOMA of the eighth cranial nerve (VESTIBULOCOCHLEAR NERVE), mostly arising from the vestibular branch (VESTIBULAR NERVE) during the fifth or sixth decade of life. Clinical manifestations include HEARING LOSS; HEADACHE; VERTIGO; TINNITUS; and FACIAL PAIN. Bilateral acoustic neuromas are associated with NEUROFIBROMATOSIS 2. (From Adams et al., Principles of Neurology, 6th ed, p673)NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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(vestibular schwannoma) A benign peripheral nerve sheath tumor arising within the internal auditory canal or within the labyrinth. (WHO 2017)NCI ThesaurusU.S. National Cancer Institute, 2021
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(vestibular schwannoma) A vestibular Schwannoma (also known as acoustic neuroma, acoustic neurinoma, or acoustic neurilemoma) is a benign, usually slow-growing tumor that develops from the VIIIth cranial nerve supplying the inner ear.Human Phenotype Ontology (HPO)The Human Phenotype Ontology Project, 2021
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(vestibular schwannoma) Vestibular schwannoma is a rare tumor of the posterior fossa originating in the Schwann cells of the vestibular transitional zone of the vestibulocochlear nerve that can be benign, small, slow growing and asymptomatic or large, faster growing and aggressive and potentially fatal, presenting with symptoms of hearing and balance impairment, vertigo, ataxia, headache and fifth, sixth or seventh cranial nerve dysfunction and facial numbness.OrphaNetINSERM, 2021
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A vestibular schwannoma, also called an acoustic neuroma, is a Schwann cell�derived tumor of the 8th cranial nerve. Symptoms include unilateral hearing loss. Diagnosis is based on audiology and confirmed by MRI. When required, treatment is surgical removal, stereotactic radiation therapy, or both.Merck & Co., Inc., 2020
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Acoustic neuromas are intracranial, extra-axial tumors that arise from the Schwann cell sheath investing either the vestibular or cochlear nerve. As acoustic neuromas increase in size, they eventually occupy a large portion of the cerebellopontine angle.WebMD, 2019
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Acoustic neuroma, also known as vestibular schwannoma, is a noncancerous and usually slow-growing tumor that develops on the main (vestibular) nerve leading from your inner ear to your brain. Branches of this nerve directly influence your balance and hearing, and pressure from an acoustic neuroma can cause hearing loss, ringing in your...Mayo Foundation for Medical Education and Research
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Vestibular schwannoma is a rare tumor of the posterior fossa originating in the Schwann cells of the vestibular transitional zone of the vestibulocochlear nerve that can be benign, small, slow growing and asymptomatic or large, faster growing and aggressive and potentially fatal, presenting with symptoms of hearing and balance...National Center for Advancing Translational Sciences
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A benign cerebellopontine angle tumor that grows from the superior vestibular component of the vestibulocochlear nerve, usually presenting with unilateral sensorineural hearing loss. Acoustic neuroma is a misnomer, because the tumor actually grows on the vestibular component and is pathologically a schwannoma. Therefore, acoustic...Athenahealth, Inc., 2019
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Acoustic neuroma, benign tumour occurring anywhere along the vestibulocochlear nerve (also called acoustic nerve), which originates in the ear and serves the organs of equilibrium and hearing. The tumour arises from an overproduction of Schwann cells, the myelin-producing cells that surround the...Encyclopedia Britannica, Inc., 2020
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