A brain tumor is an abnormal growth of tissue in the brain or central spine, that is responsible for proper brain functionality. Doctors refer to a problem based on where the tumor cells originated, and whether they are cancerous (malignant) or non-cancerous (Benign)
Benign-The least aggressive of the tumor is benign tumor. They originate from cells within or surrounding the brain, do not contain cancer cells, grow slowly, and typically have clear borders.
Malignant- Malignant type contains cancer cells and often do not have clear borders. They are considered to be life threatening because they grow rapidly and invade surrounding brain tissue.
Primary- Tumors that start in cells of the brain are called primary brain tumors. The tumor can spread to the other parts of the brain or to the spine.
Metastatic- Secondary type begins in the part of the body and then spread to the brain. These tumors are more common than primary brain tumors.
When the brain tumor is suspected, a number of tests may be done to help the doctor reach a brain tumor diagnosis. These tests may also be able to help the doctor determine what kind of tumor it is.
Some of the tests performed to first diagnose the tumor and later used to monitor progress- to see, if the tumor has disappeared, is striking, remains the same or has changed in the same way.
The doctors, nurses, and other professionals give these tests can provide an answer, information, reassurance to help one feel more at ease.
Article Source: http://EzineArticles.com/9539383