A brain tumor is a mass of tissue that forms by an accumulation of abnormal cells. Brain tumors can be benign or malignant. They may originate within the brain itself or spread from another part of the body to the brain.
Brain tumor symptoms vary according to the type and location of the tumor. However, headaches are usually one of the first symptoms experienced. Other symptoms include:
Brain tumors create swelling within the brain and cause disturbances in its normal functioning. Surgical resection is often required to reduce this swelling and lower elevated intracranial pressure caused by the presence of the tumor. Adjuvant therapies including chemotherapy and radiation therapy are also part of the treatment paradigm for malignant brain tumors.
The vast majority of brain tumors are found to be non-malignant.
Percentage of all all brain tumors cases diagnosed each year occur in children ages 0-14
Less than 1% of American adults will develop a cancerous brain tumor.
People with a malignant brain tumor have a 34.9% five-year relative survival rate.