A brain tumor is an abnormal growth of cells within the brain or surrounding tissues that can disrupt normal brain function. These tumors can be primary, meaning they originate in the brain itself, or secondary, meaning they have spread to the brain from another part of the body. Brain tumors can be benign or malignant, with malignant tumors being more aggressive and likely to spread to other parts of the brain or the body. Research in the field of brain tumors focuses on understanding the underlying causes of these tumors, developing new treatments to target and eliminate tumor cells, and improving the diagnosis and prognosis of patients with brain tumors. This research may involve studying the genetic mutations that lead to tumor formation, testing new drugs or therapies to selectively target cancer cells, and investigating ways to improve the effectiveness of current treatments such as surgery, radiation therapy, and chemotherapy. Overall, the goal of research in brain tumors is to improve outcomes for patients by finding new and more effective ways to diagnose, treat, and ultimately cure these deadly and often difficult-to-treat cancers.