Brain Tumours
Background
Cells within the brain may multiply and grow into a lump or a tumour. The tumour may be localised, pressing on other parts of the brain and is described as benign. A malignant tumour may grow and invade the brain and is described as cancer. There are many different types of malignant and benign tumours in the brain, each one with different characteristics. The commonest brain tumours in children are gliomas and medulloblastomas (sometimes called PNET) although there are many others. In general these tumours do not spread to other organs outside the brain.