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Management of symptomatic tumors is also similar to spinal nerve sheath tumors. [12] A complete surgical resection of peripheral tumors is typically done whenever indicated, and if possible. [ 12 ] Gamma knife radiosurgery , a subset of SBRT, is an option for peripheral nerve sheath tumors growing near the brain.
Malignant peripheral nerve sheath tumors are a rare type of cancer that arise from the soft tissue that surrounds nerves. They are a type of sarcoma. Most malignant peripheral nerve sheath tumors arise from the nerve plexuses that distribute nerves into the limbs—the brachial and lumbar plexuses—or from nerves as they arise from the trunk. [5]
Peripheral nerve tumors, also called tumors of peripheral nerves or tumors of the peripheral nervous system, are a diverse category with a range of morphological characteristics and biological potential. [1] They are categorized as either benign or malignant peripheral nerve sheath tumors. [2] [3]
The most common type of intradural-extramedullary tumors are meningiomas and nerve-sheath tumors. [5] The most common type of intradural-intramedullary tumors are ependymomas and astrocytomas. [6] Diagnosis involves a complete medical evaluation followed by imaging with a CT or MRI.
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.
Neuromas tend to be benign (i.e. not cancerous); many nerve tumors, including those that are commonly malignant, are nowadays referred to by other terms. Neuromas can arise from different types of nervous tissue, including the nerve fibers and their myelin sheath, as in the case of genuine neoplasms (growths) like ganglioneuromas and neurinomas.