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PRIMARY BRAIN TUMOURS - develop from brain cells. Benign tumours-remain in the part of the brain in which they started and do not spread into and destroy other areas of the brain. They do not spread to other parts of the body. Malignant primary brain tumours-are most likely to cause problems by spreading into the normal brain tissue which surrounds them and causing pressure and damage to the surrounding areas of the brain. These tumours rarely spread outside the brain to other parts of the body. SECONDARY BRAIN TUMOURS-occur when cancer cells from other parts of the body, such as the lung or breast, spread to the brain. RISK FACTORS

 Adults age 40-70 and children age 3-12.  Males have higher overall risk of brain tumors,     

but women are more prone to meningiomas, the most common brain tumors. Radiation treatment for leukemia. Epilepsy History of cancer of breast or lung. A parent with cancer of the nervous system, colon or salivary glands. Rare inherited disorders such as neurofibromatos, von hippel-Lindau syndrome and Turcot’s syndrome.

TYPES OF BRAIN TUMOUR

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Acoustic neuroma Astrocytic tumours CNS lymphoma Ependymoma Haemangioblastoma Medulloblastoma Meningioma Mixed gliomas Oligodendroglioma

Side view of the head

Parts of the brain