ON THIS PAGE: You will find some basic information about this disease and the parts of the body it may affect. This is the first page of Cancer.Net’s Guide to Childhood Medulloblastoma. To see other pages, use the menu on the side of your screen. Think of that menu as a roadmap to this full guide.
Medulloblastoma is a type of brain tumor. A brain tumor begins when healthy cells in the brain change and grow uncontrollably, forming a mass. A tumor can be cancerous or benign. A cancerous tumor is malignant, meaning it can grow and spread to other parts of the body. A benign tumor means the tumor can grow but will not spread.
The brain and spinal column make up the central nervous system (CNS), where all vital functions are controlled, including thought, speech, and body strength. Medulloblastoma begins in different cells in the cerebellum, which is the back of the brain. The cerebellum controls body movement and coordination.
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If you would like additional introductory information, explore these related items. Please note these links will take you to other sections on Cancer.Net:
- Cancer.Net Patient Education Videos: View short videos led by ASCO experts in childhood cancer  and brain tumors  that provide basic information and areas of research.
The next section in this guide is Statistics  and it helps explain how many children are diagnosed with this disease and general survival rates. Or, use the menu on the side of your screen to choose another section to continue reading this guide.