Facts And Information on Brain CancerBrain Cancer — On November 6, 2009 at 7:16 am
Cancers of the human brain are nothing but anomalous cell growths in the brain.
- Though such growths are widely known as brain tumors, not all of them are cancer. Cancer is the word set aside for malignant tumors.
- The growth and spread of malignant tumors is quite aggressive, that tends to overpower normal cells by occupying their location, blood and nutrients. (tumor cells have requirements of blood and nutrients quite analogous to all cells present in the body.)
- Benign tumors are those that do not proliferate belligerently.
- Generally, a benign tumor is less grave as compared to a malignant tumor, however it does lead to several problems in the brain.
Primary Brain Cancers
The brain comprises of several kinds of cells.
- Few of the brain cancers occur due to the transformation of one kind of cell from its normal type. No sooner does the transformation takes place, the abnormal growth and multiplication of the cells start.
- The unprecedented growth leads to them transforming into a mass or tumor.
- Brain tumors are the outcome of this alteration and irregular development of brain cells are known as brain tumors as they initiate in the brain.
- The most prevalent primary brain tumors stated below have got their name on the basis of what part of the brain or the brain cell type they originate from.
Including astrocytomas, oligodendrogliomas, ependymomas and choroid plexus papillomas.
- Pituitary adenomas
- Vestibular schwannomas
- Primitive neuroectodermal tumors (medulloblatomas)
Metastatic Brain Cancer
Metastatic brain cancer comprise of cancer cells that are part of a tumor located in another area of the body. The cancerous cells metastasize or spread to the brain from a different tumor. Nearly twenty-five percent of tumors located in a different location in the body spread to the brain.
In the United States, brain tumors are known to be affecting one in every five thousand individuals.
Brain Cancer Causes
As is the case with tumors present in the other parts of the body, the precise reason for majority of the brain tumors is unclear. Hereditary factors, varied environmental contaminants, radiation and cigarette smoking has been associated to brain cancers, however, in majority of the cases no definite reason could be deciphered.
The below stated factors have been outlined as probable risk factors for primary brain tumors. If these factors would in actuality raise one’s likelihood of developing brain tumor is unsure.
- Radiation given to the head.
- Particular inheritable conditions.
- Being infected with HIV.