CNS tumours are rare. They make up about 2% (2 out of 100) of cancers. They are most common in young children and older adults, but can occur at any age.
Unlike other cancers, there are few known risk factors for CNS tumours.
Exposure to radiation, either from environmental sources or from radiation treatment, can increase your risk of CNS tumours. However, the benefit of treating an existing life-threatening tumour with radiation outweighs the potential risk of developing a tumour later in life.
There are some genetic conditions that may increase your risk of a brain tumour. These are not very common. They include neurofibromatosis types 1 and 2, Li Fraumeni syndrome, Lynch syndrome and tuberous sclerosis.
Note: Available statistics do not have information about the inclusion of transgender and gender diverse participants. It is unknown how these statistics apply to transgender and gender diverse people. Patients are advised to speak with their primary care provider or specialists about their individual considerations and recommendations.
We do not know what causes most primary brain tumours so we do not know how to prevent them. The only way we know of is to avoid unnecessary radiation exposure.
Secondary brain tumours from lung cancer are common and lung cancer is strongly related to tobacco use.
- To lower your risk, do not smoke and try not to be exposed to tobacco
and cigarette smoke. Even if you have been using tobacco for many years,
quitting will lower your cancer risk. Support is available to help you successfully
quit: BC Cancer Tobacco andCancer Prevention
There is no screening program for these tumours.