What is a medulloblastoma?
Medulloblastoma is the other common brain tumor in children, and the most common malignant brain tumor. It accounts for about 15% of brain tumors in children.
Medulloblastomas form in the cerebellum. They are named after the medulla, which connects the bottom of the brain to the top of the spinal cord. Medulloblastomas can spread to the spine or other parts of the body.
Medulloblastomas occur primarily in children between the ages of 4 and 9, and affect boys more frequently than girls. Medulloblastomas can spread (metastasize) along the spinal cord.