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Tumour Surgery

Benign (non-cancerous) brain tumours can usually be successfully removed with surgery and don’t usually grow back.

It often depends on whether the surgeon is able to safely remove all of the tumour.

If there’s some left, if can either be monitored with scans or treated with radiotherapy.

Rarely, some slow-growing non-cancerous tumours grow back after treatment and can change into malignant (cancerous) brain tumours, which are fast growing and likely to spread.

You’ll usually have follow-up appointments after finishing your treatment to monitor your condition and look for signs of the tumour returning.

Your treatment plan

There are many different treatments for non-cancerous brain tumours.

Some people only need repeated scans to monitor the tumour and assess any growth. This is usually the case when a tumour is found by chance.

Some people will need surgery, particularly if they have severe or progressive symptoms, but sometimes non-surgical treatments are an option.

A group of different specialists called a multidisciplinary team (MDT) will be involved in your care. They will recommend what they think is the best treatment option for you, but the final decision will be yours.

Visit Polaris hospital to discuss with your doctor for treatment options, you may find it useful to write a list of questions you’d like to ask. For example, you may want to find out the advantages and disadvantages of particular treatments.


Surgery is the main treatment for non-cancerous brain tumours. The aim is to remove as much of the tumour as safely as possible without damaging the surrounding brain tissue.

In most cases, a procedure called a craniotomy will be performed. Most operations are carried out under a general anaesthetic, which means you’ll be unconscious during the procedure.

But in some cases you may need to be conscious and responsive, in which case a local anaesthetic will be used.

An area of your scalp will be shaved and a section of skull cut out as a flap to reveal the brain and tumour underneath.

The surgeon will remove the tumour and fix the bone flap back into place with metal screws. The skin is closed with either sutures or staples.

If it isn’t possible to remove the entire tumour, you may need further treatment with chemotherapy or radiotherapy.


Some tumours are located deep inside the brain and are difficult to remove without damaging surrounding tissue. In these cases, a special type of radiotherapy called stereotactic radiosurgery may be used.

During radiosurgery, tiny beams of high-energy radiation are focused on the tumour to kill the abnormal cells.

Treatment consists of one session, recovery is quick, and an overnight stay in hospital isn’t usually needed.

Chemotherapy and radiotherapy

Conventional chemotherapy is occasionally used to shrink non-cancerous brain tumours or kill any cells left behind after surgery.

Radiotherapy involves using controlled doses of high-energy radiation, usually X-rays, to kill the tumour cells.

Chemotherapy is less frequently used to treat non-cancerous brain tumours. It’s a powerful medication that kills tumour cells, and can be given as a tablet, injection or drip.

Side effects of these treatments can include tiredness, hair loss, nausea, and reddening of your skin.

Read more about the side effects of radiotherapy and the side effects of chemotherapy.

Medication to treat symptoms

You may also be given medication to help treat some of your symptoms before or after surgery, including:

anticonvulsants to prevent epileptic fits (seizures)

corticosteroids to reduce swelling around the tumour, which can relieve some of your symptoms and make surgery easier

painkillers to treat headaches

anti-emetics to prevent vomiting

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