malignant peripheral nerve sheath tumor

Definition / meaning of malignant peripheral nerve sheath tumor

A type of soft tissue sarcoma that develops in cells that form a protective sheath (covering) around peripheral nerves, which are nerves that are outside of the central nervous system (brain and spinal cord). Also called MPNST.

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Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

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