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Primary brain cancer begins in the brain. This is less common that metastatic brain cancer, which spreads to the brain from other parts of the body. Primary tumors may be caused by radiation or chemical exposure, or by certain genetic diseases. Usually, however, the cause is unknown.
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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.