Brain tumor is an abnormal behavior of the cells within the brain. The grade of a tumor refers to the way the cells look under a microscope: Grade I: The tissue is benign. The cells of the tumor seem almost like usual brain cells, and they nurture slowly. Grade II: The tissue is malignant. The cells seem fewer similar to normal cells than do the cells inside a Grade I tumor. Grade III: The malignant tissue has cells that seem extremely different from normal cells. The anomalous cells are vigorously expanding. Grade IV: The malignant tissue has cells that seem the majority abnormal and tend to nurture rapidly. In the last few years, many approaches have been proposed by researchers to locate and detect structure from different
