Unfortunately, evidence suggests that some people are more genetically predisposed to brain cancer than others. Neurologists are still debating the main causes of brain cancer. However, they are certain that they can link it to other conditions. Brain cancer is uncommon and that’s why it’s difficult to judge the survival rate.
Turner syndrome is one condition that experts know may produce brain tumors. They are also certain that tuberous sclerosis may trigger them. This is frightening but it’s not all doom and gloom. It’s not a guarantee that this will happen and if they’re receiving treatment for the other condition they may be fine (via The Guardian).