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Summary of


Medulloblastomas comprises the vast majority of pediatric embryonal tumors and by definition arise in the posterior fossa, where they constitute approximately 40% of all posterior fossa tumors. Other forms of embryonal tumors each make up 2% or less of all childhood brain tumors.

The clinical features of childhood embryonal tumors depend on the location of the tumor and the age of the child at the time of presentation. Embryonal tumors tend to be fast-growing tumors and are usually diagnosed within 3 months of the initial onset of symptoms.

(Source: National Cancer Institute)

Available CBTN Biospecimens

participants with flash-frozen tissue available405

participants with flash-frozen tissue available

participants with match blood202

participants with match blood

participants with match parental specimens19

participants with match parental specimens

participants with cerebral spinal fluid32

participants with cerebral spinal fluid

Available CBTN Pre-clinical Models

genomically characterized cell lines with data available7

genomically characterized cell lines with data available

genomically characterized pdx with data available2

genomically characterized pdx with data available

How do I get access to the specimens?

To request any of the biospecimens, or pre-clinical model please fill out this form.
Request take approx. 3 months and will require review by the scientific committee and MTA.
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Explore the data in these informatics portals

How do I get access to the data?

To access the data please follow these instructions. Need help? Contact us at
You can access processed data today here by simply logging in to PedcBioPortal
You can request raw data by completing this form. The review normally takes 1 week. Once approved you can access the raw data by creating cohorts of interest on the Kids First Data Resource Portal and performing analysis on the cloud in Cavatica