Tumours of thecentral nervous system are tumours that occupy not only the brain, but also the spinal cord. They are among the top ten most common cancers that can lead to death. They develop not only in adults or the elderly, but also in newborns or young children. Scientific research, carried out on animal material among others, contributes to a better understanding of the causes of these tumours, the type of symptoms that accompany them, the way they are diagnosed or treated. What do we know about tumours of the central nervous system?