Brain tumor occur when mass or abnormal cells develop in the brain.
Brain tumors are formed in several different types. Some are cancerous, known as malignant, while some are noncancerous or benign. Primary brain tumors are when tumors initially develop in the brain. When cancerous tumors appear in other areas of the body and spread to the brain, they are considered as secondary or metastatic brain tumors.
The growth rate of a brain tumor varies on different factors. How the brain function is affected depends on tumor’s growth rate and location. The type, the size and the location of the tumor are the factors that will determine the treatment options.
Signs and symptoms vary depending on the type, size and location of the tumor:
Consult a doctor if these signs and symptoms are persistent.
When brain tumors develop initially within the brain itself or in the tissues surrounding it, it is known as primary brain tumors. For instance, tumor arising in the covering membranes, cranial nerves, pituitary gland or in pineal gland.
When regular cells go through changes or mutate in their DNA, primary brain tumors occur. DNA in the cells guide them with what they are supposed to do. When mutations occur, the cells are indicated to grow and quickly separate themselves and to live while healthy cells die. This results in a mass formed by abnormal cells, which becomes a tumor.
Primary brain tumors are not frequently found in adults when compared to secondary brain tumors, which are the tumors that arise from cancer developing somewhere in the body and spreads to the brain.
There are various kinds of primary brain tumors. Each of them obtains their names from the type of cells that are associated with it.
When cancerous tumors appear in other areas of the body, and spread to the brain, they are known as secondary or metastatic brain tumors. Patients who have a record of cancer in the past are commonly detected with secondary brain tumors. Adults are often found with secondary brain tumors than the primary brain tumors.
Although, there is a chance for any type of cancer to spread to the brain, the most common types are breast cancer, colon cancer, kidney cancer, lung cancer and melanoma.
The cause of primary brain tumors in majority of the people is unclear. However, the followings are identified as factors that may raise the risk of developing brain tumor.
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