Medulloblastoma is a type of cancerous (malignant) tumour that starts in or near part of the brain called the cerebellum. It can spread to other parts of the brain or to the spinal cord, usually through the cerebrospinal fluid (CSF). CSF is the fluid that surrounds and protects the brain and the spinal cord. It’s very rare for medulloblastoma to spread to any other parts of the body.
This type of tumour usually affects people under the age of 45.
This information is about medulloblastoma in adults. If you need information about medulloblastoma in children, you can contact the Children’s Cancer and Leukaemia Group.
This information should ideally be read with our general information about brain tumours, which explains more about the tests, treatments and side effects you may have.