July 20th, 2007 by admin
Accurate statistics for the frequency and outcome of brain tumors are not available. It is estimated that in the
United States in 1990, there were 20,500 new cases of
primary brain tumor . New cases of
metastatic brain tumor diagnosed in 1990 were estimated to be at least 20,700. The combined estimate of 41,200 new cases of brain tumor included both benign and malignant brain tumors.
These statistics are based on the 1989
United States population of 249,000,000 people, and an incidence rate of 8.2 per 100,000 for primary brain tumors, and an incidence rate of 8.3 per 100,000 for metastatic brain tumors.
The various types of brain tumors occur with different frequency in children and in adults.
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