What is brain cancer?

 

Brain cancer is cancer that starts in brain cells. It’s also called primary brain cancer. Secondary brain cancer or brain metastases is cancer that began elsewhere in the body and has spread to the brain.

Not all brain tumours are cancer. There are two main types of brain tumour:

  • Benign brain tumours – non-cancerous tumours that grow slowly and are less likely to return after treatment (also called low-grade tumours or grade 1 and 2)
  • Malignant brain tumours – cancerous tumours that grow faster than benign tumours, and are more likely to return (also called high-grade tumours or grade 3 and 4)

Just under one in three primary brain tumours are glioblastomas (grade 4 gliomas) according to Cancer Research UK. This makes them the most common brain tumour, but there are over 100 other types.  

Glioblastomas can start in the brain or spine in cells called astrocytes, which support nerve cells. During diagnosis, your doctor looks at a gene called IDH to see if your cancer is aglioblastoma or an astrocytoma. This helps decide the best treatment pathway for you.

All glioblastomas are cancerous, grow quickly, and need prompt expert treatment.  This page covers treatments for brain cancer. To learn more about diagnosis, brain cancer symptoms, and causes of brain cancer, please visit our brain cancer condition page.

Diagnosing brain cancer

 

A brain cancer diagnosis is usually made by a specialist after a referral from a GP. To confirm brain cancer, the specialist may carry out tests and scans including a:

  • Neurological exam to check reflexes, sight, hearing, memory and thinking
  • Brain CT scan for a 3D image of your brain
  • Brain MRI scan for a detailed picture of your inner brain structure
  • PET or SPECT scan to check blood flow through the brain
  • Brain biopsy to look for cancer cells in a brain tissue sample
  • Lumbar puncture to test brain and spinal fluid

If the tests confirm primary brain cancer, you may have more specialist tests to find out more information about the cancer such as biomarker testing. This will help your doctor decide the most suitable treatment plan for you.

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Flexible appointment often within 24 hours- Monday to Friday at varying weekday and evening times

0808 304 2332
0808 304 2332

Overview of brain cancer treatment

 

 

As part of our patient-centred approach, at GenesisCare all our patients are discussed in the national multi-disciplinary meeting which brings together UK’s leading experts including Neuro-Oncologists, Neuro-surgeons, Neuro-radiologists, Medical Physicists and Neuro Clinical Nurse Specialists. This ensures tailored treatment plans and the best possible outcomes for all our patients. The main treatment options for brain cancer are surgery and radiotherapy. They can be given on their own or together. Some people may also receive systemic anti-cancer therapy such as chemotherapy.

Your treatment plan will depend on many factors, such as:

  • The type, grade, and size of the cancer
  • What area of the brain is affected
  • If the cancer cells have changes to certain genes
  • Your symptoms
  • Your general health
  • Your preferences

If the cancer is benign with few or no symptoms, your doctor may suggest active surveillance. This involves regular tests and scans to monitor the cancer without treatment. You won’t start treatment until it’s necessary or you decide you want to. This way, unwanted treatment-related side effects can be delayed.

If the tumour is cancerous and causes symptoms, it’s important to start treatment as soon as you can. Treatment aims to remove all or as much of the cancer as possible. It can also help you live more comfortably by slowing cancer growth and controlling symptoms.

Brain cancer treatment is different for adults and children. This page will focus on adult treatment for brain cancer.

The brain is a complex structure, which is why at GenesisCare we use several advanced imaging techniques to carefully create an effective treatment plan that protects as much healthy brain tissue as possible. They include:

  • Functional MRI (fMRI) scans – a painless, non-invasive scan that maps areas of the brain important for certain physical and mental activities
  • Diffusion tractography – often used together with fMRI scans to show the nerve pathways and connections between different areas in your brain

We understand the treatment process can be overwhelming at times. That’s why we’re proud to offer access to Magic Leap mixed reality viewers. They create detailed 3D images of your brain, which can help you understand your condition and treatment options in an easier way.

Enquire now

If you’d like to hear more about our radiotherapy treatments or other services we provide, speak with one of our friendly team members today. 

0808 304 2332
0808 304 2332

Brain cancer treatment at GenesisCare

 

At GenesisCare, we believe everyone deserves exceptional cancer care. Our teams of leading experts provide a wide range of services for all stages of brain cancer from diagnosis through to treatment and beyond. We use proven tests, drugs, and technologies in your personalised treatment plan to give you the best possible care. 

With our integrative approach to cancer care, excellent treatment goes beyond the treatment room. Our aim is to help you with all aspects concerning your body and health, including your lifestyle and emotional wellbeing.

Your dedicated team of clinicians and specialists will help you manage your physical health with tailored exercise medicine proven to work alongside your clinical treatments. Your emotional health is just as important, which is why we offer additional wellbeing sessions through our partnership with the national charity Penny Brohn UK – at no extra cost.

Make an enquiry

If you would like to find out more, please contact us today. We are always happy to answer any questions and concerns you may have.

0808 304 2332
0808 304 2332

FAQs about brain cancer treatment

Reviewed by:

Dr Alison Falconer

Clinical Oncologist

September 2025

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