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Tumors (growths) may occur in the brain. These tumors may be benign (noncancerous) or malignant (cancerous). Even noncancerous tumors may cause compression of the brain tissue, so they may need to be aggressively treated or removed surgically. Malignant brain tumors may be primary (cancers of the brain tissue itself) or metastatic (spread from a cancer somewhere else in the body). The February 2, 2005, issue of JAMA includes an article about primary malignant brain tumors.

TYPES OF BRAIN TUMORS

Primary brain tumors are named according to the tissue from which they arise. They include glioblastoma (the most common type of primary brain tumor and the most aggressive form of astrocytoma) and meningioma. Some types of brain tumors are more common in children than in adults, and children are more likely to develop primary brain tumors than adults. Metastatic tumors in the brain are commonly associated with cancers of the lung, breast, and colon.

SYMPTOMS

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