Benign tumours do not contain cancer cells. These are tumours that remain in the part of the brain in which they started and don’t spread into and destroy other areas of the brain. They also do not spread to other parts of the body. If a benign tumour can be removed successfully it should not cause any further problems.
However, sometimes it can be difficult to remove the tumour because of its position within the brain, or because the surrounding brain tissue could be damaged by surgery. Some benign tumours will regrow slowly and, if this happens, treatment with radiotherapy or further surgery may be needed.