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 normal 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 spread to other parts of the body. A benign tumor means the tumor 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 granular cells in the cerebellum, which is the back of the brain. The cerebellum controls body movement and coordination.
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