Incidence of Brain Cancer
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Primary Brain Cancer
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Primary brain cancer originates in the brain. About 19,000 Americans are diagnosed with primary brain cancer each year.
Secondary Brain Cancer
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Up to one third of people with metastatic cancer in other areas of the body experience a spread of the cancer cells to the brain. This occurrence is called secondary brain cancer.
Effects
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Brain cancer causes symptoms such as loss of vision or hearing, paralysis, behavioral changes and memory loss.
Theories/Speculation
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Possible contributors to the incidence of brain cancers are being researched. These include genetic causes, cell phone usage, occupational hazards and diet and nutrition.
Types
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The most commonly diagnosed type of brain cancer among adults is glioma, a cancerous growth affecting the nerve cells in the brain.
Childhood Brain Cancer
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Children experience brain cancer at an incidence of approximately one in 100,000. The most common type of brain cancer in children is medullablastoma.
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