Glioma is a stubborn malignant tumor of the central nervous system that originates from neuroglial cells. Therefore, gliomas can occur anywhere there are neuroglial cells. Clinically, based on the common sites of the tumors, gliomas can be divided into supratentorial gliomas, which are mostly found in the cerebral hemispheres, frontal lobes, temporal lobes, and parietal lobes, and are less common in the occipital lobes. There are also infratentorial gliomas primarily in the cerebellum. Additionally, a few gliomas are found in the brainstem and spinal cord.