neuroma

n. type of tumor formed of nerve tissue (Medicine)

Neuroma originally was defined as a tumor of a nerve. (Neuro- is from the Greek for nerve). Today, neuroma commonly refers to any tumor of cells of the nervous system. though some use the term only to describe tumors of the cell of the nerve and related fibers.Because of the ambiguity inherent to the term, it is usually better to use a more specific description when possible.Neuromas can be either benign or malignant.
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Neuroma /neu·ro·ma/ a tumor growing from a nerve or made up largely of nerve cells and nerve fibers. [more]Neuroma - Community and Resources

Noun
1. any tumor derived from cells of the nervous system
(hypernym) tumor, tumour, neoplasm

n. neuroma, type of tumor formed of nerve tissue (Medicine)