Types and causes of brain cancer

Types and causes of brain cancer

Brain cancer ? is an abnormal growth of brain cells.
These tumors are usually referred to as brain tumors, but not all tumors are cancerous. The term ?cancer? is used if the tumor is malignant.
Malignant tumors grow and spread actively suppress the healthy cells take their place, the blood and nutrients. (As with all body cells, cancer cells need blood and nutrients to survive).
Tumors that do not apply active, called benign.
In general, benign tumors are not as serious as malignant. However, benign tumors can cause many problems.

The brain consists of different types of cells.
Sometimes, brain cancer occurs when one type of cell loses its normal properties. The cells grow and multiply atypical.

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Growing abnormal cells form a tumor.
Brain tumors that occur as a result of these changes, and abnormal growth of brain cells are called primary tumors because they arise in the brain.
The most common brain tumors such as gliomas, meningiomas, pituitary adenomas, vestibular schwannomas, immature neuroectodermal tumor (medulloblastoma). The term ?glioma? includes astrocytomas, oligodendrogliomas, ependymomas, and papillomas choroidal plexus.
The names of most of these diseases come from parts of the brain or the type of cells in which they occur.

Metastatic brain tumor causing the cancer cells of tumors of other organs. These cells enter the brain via a process known as metastasis. Approximately 25% of the tumors metastasize to the brain of the organism.

In Ukraine, brain tumors occur in 1 in 5,000 people.

As is the case with tumors of other organs, the exact cause of brain tumors has not been established. With the advent of brain cancer associated genetic factors, various toxic substances, environmental, radiation, cigarette smoking, but in most cases the exact cause can not be established.

It is believed that the following factors are possible risk factors for brain cancer. But are they really increase the risk of brain cancer, is not known:
Effects of radiation on the head.
Some hereditary diseases.
HIV infection.

Brain tumors, all cancers, treatment, diagnosis, symptoms, causes, and articles about cancer, all the relevant cancer ?information here?

Source: http://mysnakebytes.com/2011/09/05/types-and-causes-of-brain-cancer/

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