General Description
Brain tumors are masses of abnormal cells that have grown out of control. American Cancer Society estimates that 22,070 malignant tumors of the brain or spinal cord (12,010 in men and 10,060 in women) will be diagnosed during 2009 in United States. This would account for about 1.5% of all cancers. There are a variety of risk factors that may contribute chance of getting brain tumors:
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Being male
Generally tumors are more common in males than females.
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Race
Brain tumors occur more often among white people than among people of other races.
