Overall, a person has less than 1% chance of developing a malignant tumor of the brain or spinal cord in his or her lifetime. Although the risk for men (about 1 in 143) is slightly higher than the risk for women (about 1 in 185), certain types of tumors are more common in women.
Brain tumors can occur when they originate from different types of brain cells (primary brain tumors) or when the cancer spreads from another part of the body to the brain (matasta size). It is difficult to prove the cause of a brain tumor. It is advisable to avoid compounds associated with the development of cancer.
The initial symptoms of brain tumors vary by type, but most commonly include headaches, which can become severe and worse in activity and early morning. Also, seizures can occur. Exercise attacks, also known as seizures, are sudden involuntary movements of a person's muscles. In addition to nausea and vomiting, there may be changes in personality and memory. The person may feel tired, drowsy, and suffer from sleep disorders or insomnia.
There are many types of brain tumors, but this article focuses on the type that most people suffer from, known as glioma. Gliomas begin with glial (supporting) tissue. There are several types of gliomas, including:
1. Ependymoma: ependymal cells
2. Astrocytoma: Astrocytes (polymorphic glioblastoma is a malignant astrocytoma and is most common in adults)
3. Oligodendroglioma: oligodendrocytes
4. Brainstem glioma: occurs in the brainstem
5. Optic nerve glioma: Occurs in and around the optic nerve
The exact cause of glioma is unknown. Hereditary hereditary diseases are known to predispose to their onset. Recently, researchers have found that adults with glioma are most likely to eat a diet high in hardened foods and low in vitamin C. Gliomas also correlate with electromagnetic radiation from mobile phones, suggesting that cancer can be associated with mobile phone use. Although some studies have shown that farmers have a higher incidence of glioma than the general population, exposure to livestock and manure is not associated with glioma.
Treatment of cerebral glioma depends on the location, cell type, and degree of malignancy. Treatment is often a combination of surgery, radiation therapy, and chemotherapy. Radiation therapy is given in the form of a stereotactic approach using external beam radiation therapy or radiation surgery. Spinal cord tumors can be effectively treated by surgery and radiation therapy. The chemotherapeutic drug temozolomide can effectively cross the blood-brain barrier and is currently used to treat high-grade tumors.
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