Gliomas are a large group of brain and spinal cord tumors that originate from glial cells, a major brain cell that can develop into cancer. Symptoms, prognosis and treatment of malignant gliomas are determined by the patient’s age, tumor type and location of the tumor in the brain. These tumors tend to grow or invade into normal brain tissue, complicating treatment and making surgical removal difficult or even impossible. The risk of brain tumors increases with age, reaching a maximum risk around the ages of 75-84. Hypofractionated gliomas usually occur in children, while brain tumors are slightly more prevalent in men. The only risk factor for malignant glioma is prior radiation exposure to the brain, and family history factors account for less than 5% of the risk for this type of tumor, which is exacerbated by some genetic disorders in pediatric patients but less so in adults. There is no definite relationship between the development of malignant glioma and alcohol consumption, smoking and cell phone use. There are different types of gliomas. Forty-two percent of brain tumors are benign, and 77% of malignant brain tumors are gliomas. Gliomas are named based on a specific type of glial cell in brain cells. According to the American Oncological Society, there are three types of gliomas, including astrocytoma, oligodendroglioma, and ventricular meningeal cell tumor. Astrocytomas account for 35% of brain tumors and originate from astrocytes. Because they spread through normal brain tissue, most of these tumors cannot be cured. Astrocytomas are classified as low-grade malignant, moderately malignant, or highly malignant tumors based on microscopic histology. tumor, one of the most common malignant brain tumors in adults, grows very rapidly. Oligodendroglioblastoma —- accounts for 4% of all brain tumors and it spreads in a similar manner to astrocytoma and is usually not curable by surgery. Ventricular meningioma —- accounts for 2% of all brain tumors. This tumor is derived from ventricular meningeal cells, and because it does not spread into normal brain tissue, some ventricular meningiomas can be cured surgically.