neurofibroma

/ˌnʊroʊfaɪˈbroʊmə/
noun
  1. A non-cancerous tumor that grows on nerve tissue, often under the skin or along nerves.
    • She had surgery to remove a neurofibroma that was pressing on a nerve in her leg.
    • The doctor found a small neurofibroma on the patient's arm during the checkup.
    • Most neurofibromas are harmless and do not require treatment unless they cause pain.