A brain tumor is any mass created by an abnormal and uncontrolled growth of cells either found in the brain (neurons, glial cells, epithelial cells, myelin producing cells, etc.) or spread from elsewhere (metastasis). Brain tumors are usually located in the posterior third of the brain in childhood and in the anterior two-thirds of the brain in adulthood.
In the United States in 2000, it was estimated that there were 16 500 new cases of brain tumors, which accounted for 1.4% of all cancers, 2.4% of all cancer deaths, and 20%-25% of pediatric cancers. Ultimately, it is estimated that there are 13 000 deaths/year as a result of brain tumors.
brain tumor symptoms and differentiation
Tumors in the brain are either benign or malignant and each has different brain tumor symptoms.
Benign brain tumors include:
pituitary adenoma - The diagnosis is generally entertained either on the basis of visual difficulties arising from the compression of […]
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