A schwannoma (also known as an `neurilemoma,`{rp|621} `neuroma,` `neurolemoma,` and `Schwann cell tumor`) is a benign nerve sheath tumor composed of Schwann cells, which normally produce the insulating myelin sheath covering peripheral nerves. Schwannomas are homogeneous tumors, consisting only of Schwann cells. The tumor cells always stay...
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http://en.wikipedia.org/wiki/Schwannoma
A tumor of the peripheral nervous system that arises in the nerve sheath (protective covering). It is almost always benign, but rare malignant schwannomas have been reported.
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http://www.cancer.gov/dictionary?expand=S
<tumour> A benign, encapsulated neoplasm in which the fundamental component is structurally identical to a syncytium of Schwann cells; the neoplastic cells proliferate within the endoneurium, and the perineurium forms the capsule. The neoplasm may originate from a peripheral or sympathetic nerve, or from various cranial nerves, particularly t...
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http://www.encyclo.co.uk/local/20973
(shwah-no´mә) a neoplasm originating from Schwann cells of neurons; types include neurofibromas and neurilemomas. neurilemoma.
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http://www.encyclo.co.uk/local/21001
Type: Term Pronunciation: shwah-nō′mă Definitions: 1. A benign, encapsulated neoplasm in which the fundamental component is structurally identical to the syncytium of Schwann cells; the neoplastic cells proliferate within the endoneurium, and the perineurium forms the capsule. The neoplasm may originate from a peripheral or sympathe...
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http://www.medilexicon.com/medicaldictionary.php?t=80112
A tumour of the nerve sheath (fatty covering of the nerves). Can occur in the major nerves of the head or the peripheral nerves (outside the brain and spinal cord). One of the commonest sites is the main nerve for hearing, the acoustic nerve. Schwannomas are usually benign, but can rarely be malignant.
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https://www.encyclo.co.uk/local/20753
No exact match found.
