Brain tumor is a collection of abnormal cells, caused when brain cells grow in an uncontrolled manner. Brain tumors can be cancerous and non-cancerous. Learn more about types, early symptoms, diagnosis and treatments available for brain cancer.
Brain tumors are divided into 4 stages starting from Stage I to Stage IV. In the Stage I, the cancer starts growing slowly and then Stage IV is the advanced stage in which the cancer spreads to other parts of the body.