What are the chances that i may have a brain tumor?

Low: In the abscence of symtoms the chances of having a brain tumor are low. This particularly in the case of the high grade ones which usually evolve over time and have neurological symptoms. However, it has been estimated based on autopsy studies that up to 10% of the population may harbor a meningioma. These may be so small and clinically insignificant that they are found incidentally on MRI scans.