At the time of the participant's diagnostic procedure or surgery, leftover tissue from the sample removed to test for the diagnosis will be saved and submitted to the repository for research. In addition, when blood is drawn for routine tests, an additional amount will be collected and banked in the repository. If the participant needs additional surgery for treatment, or due to relapse, leftover sample from the specimen may also be saved for research purposes.
o Treated for brain tumor at COG institution
o Must provide tumor sample plus 5 mls of blood
o Patient, parents, and/or LAR must provide informed consent