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  2. Spinal tumor - Wikipedia

    en.wikipedia.org/wiki/Spinal_tumor

    Spinal tumors are neoplasms located in either the vertebral column or the spinal cord. [1] There are three main types of spinal tumors classified based on their location: extradural and intradural (intradural-intramedullary and intradural-extramedullary). Extradural tumors are located outside the dura mater lining and are most commonly ...

  3. Nervous system tumor - Wikipedia

    en.wikipedia.org/wiki/Nervous_system_tumor

    A nervous system tumor is a tumor that arises within the nervous system, either the central nervous system (CNS) or the peripheral nervous system (PNS). [1] [2] Nervous system primary tumors include various types of brain tumor and spinal tumors, such as gliomas, and meningiomas (of the CNS), and schwannomas (of the PNS) and can be either benign or malignant.

  4. Malignant peripheral nerve sheath tumor - Wikipedia

    en.wikipedia.org/wiki/Malignant_peripheral_nerve...

    A malignant peripheral nerve sheath tumor (MPNST) is a form of cancer of the connective tissue surrounding peripheral nerves. Given its origin and behavior it is classified as a sarcoma . About half the cases are diagnosed in people with neurofibromatosis ; the lifetime risk for an MPNST in patients with neurofibromatosis type 1 is 8–13%. [ 2 ]

  5. Peripheral nerve tumor - Wikipedia

    en.wikipedia.org/wiki/Peripheral_nerve_tumor

    5.3% of all benign soft tissue tumors Skin, with predominant dermal involvement, less frequently medium-sized nerves, a nerve plexus, a major nerve trunk, or spinal nerve roots; Bilateral and/or multiple spinal root involvement in NF1; Spinal cord compression; Cranial nerve involvement is ultrarare; Perineurioma (Intraneural and soft tissue ...

  6. Nerve sheath tumor - Wikipedia

    en.wikipedia.org/wiki/Nerve_sheath_tumor

    Spinal nerve sheath tumors generally arise as single lesions. [1] Presence of multiple lesions is associated with genetic conditions including neurofibromatosis type 1, neurofibromatosis type 2, and Schwannomatosis. [1] [3] [4] Most spinal schwannomas are intradural-extramedullary, growing inside the thecal sac, but outside the spinal cord ...

  7. Schwannoma - Wikipedia

    en.wikipedia.org/wiki/Schwannoma

    Malignant melanotic nerve sheath tumor (previously known as melanotic schwannoma) is a rare aggressive peripheral nerve sheath tumor that typically develops in conjunction with spinal or visceral autonomic nerves, consisting uniformly of Schwann cells displaying melanocytic differentiation.