Your condition can be frustrating, unpredictable and depressing. But you can take action! Record your experiences, feelings, your treatment regimen, and your body's reaction. This volume consists of 150 plain college-ruled pages. A brain tumour is a growth of cells in the brain that multiplies in an abnormal, uncontrollable way. It can either be cancerous (malignant) or non-cancerous (benign).Brain tumours are graded from 1 to 4 according to their behaviour, such as how fast they grow and how likely they are to grow back after treatment.