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Brain Tumor:- O ver and excessive growth of cells creating a mass in the brain is called a brain tumor. The tumors in the brain could be either cancerous or non- cancerous. Non- cancerous brain tumors are called benign while cancerous brain tumors are called malignant tumors. If the tumor in the brain originates in the brain itself then it is called a primary brain tumor. Sometimes cancerous development of cells in other parts of the body can spread to the brain then it is called secondary or metastatic brain tumors. Malignant brain tumors grow rather fast and affect the normal functions of the body and if proper medical care is not provided in time the life of the patient could be in danger. However, the chances of brain cancer in one's lifetime are very low. Types:- In the normal process old cells die out and new cells are formed to ensure growth and repair of the body tissues. Sometimes new cells start forming without the requirement thus creating extra cells that for
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