Are Brain Tumors Hereditary?

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Anonymous answered
Each type of brain tumor can have a very different familial association.  In general, tumors at a younger age are more likely to be inherited than those at an older age, which are more often spontaneous.  For all primary brain tumors, it looks like about 5% are known to be hereditary.  The precise risk is difficult to calculate, but since he got the tumor at an older age, and assuming no one else in the family has had other unusual or early cancers, I'd think your dad's cancer was most likely not inherited.
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Anonymous answered
You inherit the susceptibility, because you have the same genes, but there are other factors, external factors, that you can still control in order to prevent having it.  Like your diet, the lifestyle you have and your disposition in life. 

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