Ear Nose Throat J. 2006 Nov;85(11):704.
FIRST PARAGRAPH: A schwannoma (acoustic neuroma or neurilemmoma) is a globular, firm, tan-yellow, solid to cystic neoplasm of nerve sheath (Schwann) cells. Schwannomas are the most common neoplasms of the ear and temporal bone. The vast majority arise at the cerebropontine angle, and 95% are unilateral and sporadic. Bilateral schwannomas and those that arise in young patients are highly associated with neurofibromatosis type 2 (NF2). Schwannomas affect men and women equally, usually in the fifth or sixth decade of life except in patients with NF2, who generally present at a younger age.
PubMed ID: 17168142
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