The brain and spinal cord make up the central nervous system (CNS). The brain controls different functions of the body, including how we think, feel, learn and move. The spinal cord is made up of nerves that run down the middle of the back (spine). Messages between the brain and other parts of the body travel through the spinal cord.
A tumour can be benign (not cancer) or malignant (cancerous). A benign brain tumour can cause problems as it grows if it presses on surrounding tissue, but it can’t spread to other parts of the brain. A malignant tumour can cause problems by growing into nearby tissues and may spread to other parts of the CNS.
We have more information about the brain and the different types of brain tumours.