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Definition of Glioma, optic

Glioma, optic: A rare, most commonly benign tumor on the optic nerve or the optic chiasm (the crossing of the two optic nerves). Optic gliomas cause pressure and destruction of normal optic nerve tissue. They are most common in children and teens. Optic gliomas are strongly associated with neurofibromatosis (NF1).

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=20965
Last Editorial Review: 3/19/2012

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