Nerve Sheath Neoplasm

**Semantic type:** Neoplastic Process

**Definition:** A benign or malignant neoplasm arising from the perineural cells in the sheaths surrounding the nerves. Representative examples include neurofibroma, schwannoma, and malignant peripheral nerve sheath tumor.

**Synonyms:** - Neoplasm of Nerve Sheath - Neoplasm of the Nerve Sheath - Nerve Sheath Tumor - Nerve Sheath Tumors - Tumor of Nerve Sheath