Brain tumors are abnormal cell growths that develop in the brain and can be cancerous (malignant) or non-cancerous (benign). They are the second most common childhood cancer and symptoms depend on the tumor's location and size. Management may include surgery, radiation therapy, and chemotherapy to prevent complications from increased pressure on the skull. Nurses monitor patients for signs of increased intracranial pressure like headaches and vomiting and communicate any changes to doctors for timely intervention. The outlook depends on factors like tumor type, size, location, and how early treatment was initiated.