The tumors may be either benign (not cancer) or malignant (cancer): When a tumor grows into or presses on an area of the brain, it may stop that part of the brain from working the way it should.
Both benign and malignant brain tumors cause signs and symptoms and need treatment.
Spinal cord nerves carry messages between the brain and the rest of the body, such as a message from the brain to cause muscles to move or a message from the skin to the brain to feel touch.
The majority of benign brain tumors arise from brain or brain-associated tissue (for example, nerve tissue, blood vessels).
The following is a list of the most frequently diagnosed benign brain tumors: An adult central nervous system tumor is a disease in which abnormal cells form in the tissues of the brain and/or spinal cord.