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How are primary and metastatic brain tumors different?

Brain tumors are classified as either primary or metastatic. Primary brain tumors originate inside the brain or its immediate surroundings. Metastatic brain tumors originate in other parts of the body. Primary brain tumors can be benign or malignant, and are usually named after the brain cells or the location from which they originate. The majority of primary brain tumors, for example, are gliomas, which originate within the brain's glial cells.

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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.