1. 
   Schwannoma
   A schwannoma (also known as an "neurilemmoma,"{rp|621} "neurinoma," "neurolemmoma," 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 very homogeneous tumors, consisting...
   Found op http://en.wikipedia.org/wiki/Schwannoma
   
   
2. 
   Schwannoma
   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 maligna...
   Found op http://www.cancerhelp.org.uk/utilities/glossary/index.htm?search=s
   
   
3. 
   Schwannoma
   a tumour of schwann cells that can be associated with Neurofibromatosis
   Found op http://www.medicalneuroscience.com/neuro_glossary.html
   
   
4. 
   schwannoma
   <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 ner...
   Found op http://www.mondofacto.com/facts/dictionary?schwannoma
   
   
5. 
   schwannoma
   (shwah-no´mә) a neoplasm originating from Schwann cells of neurons; types include neurofibromas and neurilemomas. neurilemoma.
   Found op http://www.encyclo.co.uk/local/21001
   
   
6. 
   schwannoma
   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 ne...
   Found op http://www.medilexicon.com/medicaldictionary.php?t=80112
   
   
7. 
   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.
   Found op http://www.cancer.gov/dictionary?expand=S
   
   

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