A tumor is an abnormal growth of body tissue. Brain tumors are abnormal growths in the brain that can either be cancerous (malignant) or noncancerous (benign). The effects on the brain of malignant and benign brain tumors are very similar and can cause the same types of problems depending on the type of cells involved, the speed of their growth and the location in the brain. Research shows that some people are more at risk due to certain genetic and environmental conditionsain.
Attribution: Avallain