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What is a malignant brain tumor?

A malignant brain tumor is a cancer that started in the cells of the brain. Unlike cancers that start in other parts of the body, tumors that start in the brain or spinal cord rarely spread to distant organs. They cause damage because they grow and spread into nearby areas, where they can destroy normal brain tissue. Still, tumors of the brain or spinal cord are rarely considered benign (non-cancerous). This is because unless they are completely removed or destroyed, most brain or spinal cord tumors will continue to grow and eventually be life-threatening – even those that are not cancer.
Primary brain tumors can start in almost any type of tissue or cell in the brain or spinal cord. Some tumors contain a mixture of cell types. Tumors in different areas of the central nervous system may be treated differently and have a different prognosis (outlook).

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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.