A brain tumor is the formation of a mass or outgrowth of cells of the brain. These tumors are enclosed within the skull that increase the intracranial pressure and cause damage to the skull and brain cells.
Brain tumors may be classified into malignant (cancerous) and benign (non-cancerous) tumors. The type of tumor determines the severity, scope of treatment and cure of the tumor.
Depending on the origin of the tumor, it can be classified as primary and secondary tumors. Primary tumors originate from the brain tissues, while secondary tumors originate from other parts of the body and affect the brain cells. These secondary tumors are also known as metastatic brain tumors.
The severity of the brain tumors depends on the size and location of the tumors. However, the rate of multiplication of cancer cells increases the risk of the condition.
The common types of brain tumors include:
Brain tumors may produce mild to severe symptoms that affect the functions of the brain and other parts of the body. These symptoms vary depending on the size, shape and location of the tumors.
The common symptoms of brain tumors include:
The primary brain tumors originate from the brain or the tissues present in the brain, such as meninges, pituitary gland or cranial nerves.
The secondary tumors may originate from other parts of the body and spreads (metastasis) to the brain. These tumors usually occur in people with a history of tumors. The causes of secondary tumors may include oral, breast, lung, colon and kidney cancer.
The risk of brain tumors increases with the following factors:
The diagnosis of brain tumors include:
Depending on the type of brain tumor and severity of the condition, brain tumors can be treated either with chemotherapy, radiation therapy or surgery.