![]() If there is any question about whether or not a tumor is cancerous, it is important to get a needle biopsy or special study done to be sure. Peripheral nerve sheath tumors are rarely malignant (cancerous).Ĭancerous peripheral nerve tumors are more problematic, painful and grow rapidly. The tumor usually can be resected out of the nerve itself without harming the nerve's function. Removal can usually be performed without destroying the nerve. Patients often consider removing these tumors when they become problematic. They can interfere with normal activities, causing discomfort, tingling or even numbness, weakness and severe pain. Peripheral nerve tumors generally grow slowly and may be noticed as a lump somewhere in the body. Neurofibromas and schwannomas are non-cancerous and are the most common type of nerve tumor.Īlso see Acoustic Neuroma When to Remove a Nerve Tumor Malignant peripheral nerve sheath tumor (sarcoma).Benign peripheral nerve sheath tumor (e.g., neurofibromas, schwannomas).They usually develop randomly, but occasionally can be caused by a health condition or syndrome, such as neurofibromatosis (type 1 and type 2). Nerve sheath tumors grow directly from the nerve itself. The nerve sheath is the tissue that covers and protects the nerves. Our specialists are able to quickly diagnose and treat nerve-related functional impairments and nerve tumors using leading-edge surgical techniques. Brachial plexus (radial nerve, median nerve, ulnar nerves).Somatic nervous system (SNS): Controls muscle movement and relays information from ears, eyes and skin to the central nervous system.Autonomic nervous system (ANS): Controls involuntary bodily functions and regulates glands.The peripheral nervous system is divided into two main parts: They relay information between your brain and the rest of your body. Peripheral nerves reside outside your brain and spinal cord. Central nervous system (brain and spinal cord).Peripheral nerves are an integral part of the human nervous system. If a peripheral nerve condition is affecting your quality of life, turn to UC San Diego Health for expert care for nerve pain, nerve compression injuries, nerve trauma, and other disorders of the peripheral nerves.
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