Brain Cancer
What is brain cancer?
We have billions of cells in our body, which grow and multiply to help support our body's natural processes and functions, such as repairing damage.
However, if the cells in the brain 'go wrong' and begin to grow in an abnormal way, rather than repair damage, they can inadvertently cause it.
If these abnormal brain cells begin to grow and multiply, contained within the brain, this is how a primary brain tumour can occur. If the cells then grow rapidly and spread within the brain, this is how cancerous tumours are formed and will result in a brain cancer diagnosis.
If the cells go wrong elsewhere in the body first, say, the lungs, and those cells spread to the brain, this is known as secondary brain cancer or, metastases.
How brain cancer is graded
There are over 150 different brain tumour types, each named after the type of cell they grow from, their location in the brain how likely they are to spread.
Brain tumours that grow rapidly are known as high grade (grade 3 brain cancer and grade 4 brain cancer).
Occasionally, people will refer to these as stage 3 brain cancer or stage 4 brain cancer. However the word 'stage' is often used in other forms of cancer, but is incorrect when discussing brain cancer.
Brain tumours that grow more slowly, and are usually non-cancerous, are known as low grade (grade 1 brain tumour and grade 2 brain tumour).
The prognosis for brain cancer varies from person to person and your medical team is best placed to advice you of this based on your individual circumstances and brain cancer diagnosis.
What is the cause of brain cancer
It is important to remember that there is nothing you could have done, or not done, to prevent brain cancer.
Largely, there is no known cause of brain cancer, but we do know there are risk factors, such as your genetic makeup or exposure to radiation.
Can brain cancer be cured?
Many people diagnosed with brain cancer will want to know if brain cancer be cured, however this can vary from person to person and type to type.
It is more likely that brain cancer will spread to other parts of the brain than a lower grade brain tumour and, despite successful treatment, brain cancer can often return.
However, this depends on a lot of factors such as the location of the tumour, its reaction to treatment, or the success of surgery and, to a certain extent, its molecular/genetic make-up. Your medical team will be best placed to advice you on your individual circumstances and prognosis.
Types of brain cancer
The most common type of primary brain cancer in adults is
glioblastoma.
There are both primary and secondary types of glioblastoma. Primary glioblastoma originates in the brain and first appears as a grade 4 glioblastoma.
Secondary brain cancer
Often, secondary cancer refers to the spread of cancer from one part of the body to another, however a secondary glioblastoma still originates in the brain but has developed from a lower grade brain tumour type, known as an
astrocytoma.
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