Gliomas are central nervous system neoplasms derived from glial cells, including astrocytomas, glioblastoma multiforme, oligodendrogliomas, ependymomas, and subependymomas. Ependymomas are rare glial tumors of the brain and spinal cord, while subependymomas are slow-growing, noninvasive tumors located in specific areas. Gliomas can be associated with hereditary tumor syndromes but may also occur independently. They are a complex group of benign and malignant cerebral tumors arising at any age. Astrocytomas, the second most common glioma, originate from star-shaped glial cells in the brain and spinal cord.