Central Nervous System (CNS) tumors are abnormal growths of cells in the brain or spinal cord. They can be benign (non-cancerous) or malignant (cancerous) and can arise from various types of cells, including neurons and glial cells. Symptoms may include headaches, seizures, and changes in vision or behavior, depending on the tumor's location and size. Diagnosis typically involves imaging tests like MRI or CT scans, and treatment options may include surgery, radiation therapy, and chemotherapy. The prognosis varies based on the tumor type, location, and the patient's overall health. Early detection and treatment are crucial for better outcomes.