Tumor samples and CSF from 25 pediatric EBT patients were analyzed in this study: medulloblastoma (n = 18), ATRT (n = 3), ETMR (n = 1), CNS NB FOXR2 (n = 2) and pediatric EBT NOS (n = 1) (Supplementary Table S1a,b). Here, FOXR2 is linked to neoplasm.