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Glioblastoma

Glioblastoma is a fast-growing, aggressive type of brain tumor in adults. Because it grows quickly and can spread into nearby brain tissue, early diagnosis and treatment are important.

A glioblastoma diagnosis can feel overwhelming. At Banner Health, our team of experts will guide you through your choices and help you create a treatment plan to manage the disease and keep you comfortable.

What is glioblastoma?

Glioblastoma, also called glioblastoma multiforme or GBM, is a type of brain tumor classified as a glioma. A glioma is a tumor that develops from glial cells in the brain. Glioblastoma develops from astrocytes, a type of glial cell that helps support and protect nerve cells in the brain.

It is the most aggressive type of primary brain cancer, meaning the cancer begins in the brain rather than spreading from another part of the body. It is classified as a Grade 4 brain tumor.

Glioblastoma symptoms

A brain tumor can cause many different changes. Glioblastoma symptoms often start suddenly. That’s because the tumor grows quickly, increases pressure inside your skull and presses against brain tissue.

Symptoms vary depending on where the tumor is located. Common signs include:

  • Headaches: They are often worse in the morning and get more painful over time
  • Seizures: Sudden, uncontrollable electrical activity in the brain
  • Nausea and vomiting: These may happen at the same time as severe headaches
  • Vision changes: Blurred vision or double vision
  • Cognitive changes: Memory loss or confusion
  • Personality changes: You or your family might notice sudden mood shifts or changes in the way you act
  • Language difficulties: Trouble speaking or understanding words
  • Weakness or numbness: Often on one side of your body

Many conditions can cause symptoms like these. To have your symptoms evaluated, find a Banner Health provider near you.

What causes glioblastoma?

Most of the time, the cause is unknown. The disease usually happens due to random changes in the DNA of brain cells.

Glioblastoma is usually not inherited from parents and doesn’t run in families. It’s not caused by lifestyle choices. 

How glioblastoma is diagnosed

If your health care provider thinks you might have a brain tumor, they will start with a neurological exam to check your vision, hearing, balance, reflexes and muscle strength.

They may order:

  • Imaging scans: An MRI or CT scan shows the size and location of the tumor.
  • Biopsy: A small piece of tissue from the tumor is removed and examined under a microscope to check for cancer.
  • Molecular testing: Specialists test the tumor tissue for specific genes and biomarkers that can help guide your treatment.

What to expect after diagnosis

With glioblastoma, you need quick action and ongoing medical attention. Your care team will work closely with you to manage your daily health.

  • Initial treatment and next steps: Treatment will start quickly after your diagnosis. Your team will set up your schedule for surgery, radiation and chemotherapy and guide you through your care.
  • Ongoing monitoring and follow-up: With glioblastoma, the tumor often returns. You will need follow-up MRI scans every few months to track your brain health so your doctor can change your treatments if needed.

Glioblastoma treatment options

After a glioblastoma diagnosis, you need to start medical care right away. While there is no cure, treatment can help slow the tumor’s growth and manage your symptoms.

Surgery

The first step in glioblastoma treatment is usually a surgery called a craniotomy, where a neurosurgeon removes as much of the tumor as they can. These tumors can’t always be completely removed because of the way they grow into healthy brain tissue. Sometimes, a biopsy of the tumor is safer than trying to take all of it out.

Radiation therapy

Radiation therapy uses high-energy beams to target cancer cells the surgeon could not remove. 

Chemotherapy

Along with radiation, you may take a chemotherapy drug called temozolomide (TMZ) to help slow down the growth of cancer cells.

Tumor-treating fields (TTF)

Tumor-treating fields send low-intensity electrical fields through your skull with pads attached to your scalp. These electrical fields make it harder for cancer cells to divide and grow.

Clinical trials

Clinical trials give you access to new and innovative treatments, including advanced options like immunotherapies and targeted drugs. Your care team can help you decide if a clinical trial is right for you.

Supportive (palliative) care

Palliative care focuses on relieving pain and managing side effects. This care works along with your cancer treatments to keep you comfortable and improve your quality of life.

Support services for you and your family

A cancer diagnosis impacts your emotional well-being. Our cancer support services can help you cope.

Our programs include:

  • Rehabilitation services: Physical, occupational and speech therapy address any changes in your movement or thinking and help you regain your strength.
  • Palliative care: Compassionate specialists focus on pain relief and emotional comfort. 
  • Counseling: Support groups and therapy provide emotional help for you and your family.
  • Caregiver support: We have resources to help your loved ones manage the stress of caregiving.

Glioblastoma care at Banner Health

Glioblastoma is a serious, fast-growing brain tumor that needs specialized care right away. Early diagnosis and treatment can help manage your symptoms. 

At Banner Health, we provide expert care for complex brain tumors. Our multidisciplinary team of neurosurgeons, neuro-oncologists, radiation oncologists and other specialists works together to build a treatment plan designed just for you.

To get care from our specialists, find a Banner Health provider near you.

FAQs

Is glioblastoma the same as brain cancer?

Yes, glioblastoma is a type of primary brain cancer. It is the most common and aggressive malignant brain tumor found in adults.

What are the first symptoms of glioblastoma?

Often, you may have frequent headaches that are worse in the morning. Other early signs are unexpected seizures, memory issues or sudden personality changes.

How fast does glioblastoma grow?

Glioblastoma is a grade 4 tumor, which means it grows very rapidly. It can quickly spread into surrounding healthy brain tissue. But it doesn’t usually spread to other parts of the body.

Can glioblastoma be cured with surgery?

A neurosurgeon can remove the main mass of the tumor to lower the pressure in your brain. However, surgery cannot remove every cell because the tumor spreads microscopically into healthy tissue. A total resection means removing all tumor visible on MRI, even though we know that small tumor cells not visible on imaging require additional chemotherapy and radiation to slow how quickly the tumor can come back. 

What treatments are used for glioblastoma?

Standard treatment includes surgery followed by radiation therapy and chemotherapy. Doctors may also use tumor-treating fields and clinical trials.

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