Childhood Brain Tumor Assessment View Calculator A brain tumor is any growth of abnormal cells or the uncontrolled growth of cells in the brain. The tumor may originate in the brain (primary brain tumor) or spread to the brain from another part of the body. Tumors can directly destroy brain cells or they can damage cells indirectly by causing inflammation and compressing other parts of the brain as the tumor grows, by causing the brain to swell (edema), or by causing pressure inside the skull. The cause of primary brain tumors is unknown, but some tumors tend to be hereditary while others are congenital and were present before birth. The symptoms of brain tumors depend on tumor size, type, and location. Bad headaches and vomiting are symptoms with many common causes, but when combined with any of the other brain tumor symptoms increases the possibility of a brain tumor. Take this quick assessment to learn the signs of brain tumors in children and help you determine if your child should be evaluated for a possible brain tumor. Learn more about putting this calculator or other calculators on your website.