Glioblastoma

Overview

Glioblastoma (GBM) is the most common type of malignant (cancerous) brain tumor that starts in the brain in adults. Cancer cells in glioblastoma tumors rapidly grow and multiply. The cancer can spread into other areas of your brain and spinal cord as well. Rarely, the cancer spreads outside your brain to other parts of your body.

Glioma tumors like GBM start in glial cells. Glial cells are vital to nerve cell function. Glioblastoma specifically forms in glial cells called astrocytes. GBMs are the fastest-growing astrocytoma (a tumor that forms in astrocytes).

Glioblastoma, formerly known as glioblastoma multiforme, is a devastating type of cancer that can result in death in fewer than six months without treatment. It’s important to seek diagnosis and treatment as soon as possible to prolong your life.

How common is glioblastoma?

More than 13,000 Americans are diagnosed with GBM every year. Glioblastoma accounts for almost half of all cancerous brain tumors.

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Symptoms

When to see a doctor

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Complications

Blood clots are a dangerous complication of atrial fibrillation (AFib). Blood clots can lead to stroke.

The risk of stroke from AFib increases as you grow older. Other health conditions also may increase the risk of a stroke due to AFib. These conditions include:

High blood pressure.
Diabetes.
Heart failure.
Some types of heart valve disease.

Blood thinners are commonly prescribed to prevent blood clots and strokes in people with atrial fibrillation.

Prevention

Healthy lifestyle choices can reduce the risk of heart disease and may prevent atrial fibrillation (AFib). Here are some basic heart-healthy tips:

Control high blood pressure, high cholesterol and diabetes.
Don't smoke or use tobacco.
Eat a diet that's low in salt and saturated fat.
Exercise at least 30 minutes a day on most days of the week unless your health care team says not to.
Get good sleep. Adults should aim for 7 to 9 hours daily.
Maintain a healthy weight.
Reduce and manage stress.

By Mayo Clinic Staff

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Diagnosis & treatment

Living with atrial fibrillation?

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