As a charity, we rely on voluntary contributions to provide this information. Brain tumours do not usually spread to other parts of the body, but can cause problems by invading the normal brain tissue that surrounds them.
Brain tumours can develop in the different types of cells found in the brain.
The cause of brain tumours is unknown. The two main types of brain tumours that affect children are gliomas and medulloblastoma . The tumours are graded between I and IV depending on their rate of growth, grade I being slower growing and grade IV faster growing. Medulloblastomas usually develop in the cerebellum at the back of the brain. They may spread to other parts of the brain or into the spinal cord.