Our Brain tumor Main Article provides a comprehensive look at the who, what, when and how of Brain tumor
Definition of Brain tumor
Brain tumor: A benign or malignant growth in the brain. Primary brain tumors initially form in brain tissue. Secondary brain tumors are cancers that have spread (metastasized) to the brain tissue from tissue elsewhere in the body. Brain tumors can occur in people of any age.
Last Editorial Review: 3/19/2012
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