BCOR and neuroepithelial neoplasm: Methylation class “CNS tumor with BCOR/BCOR(L1)-fusion” was recently defined based on methylation profiling of a series of 21 neuroepithelial tumors with predominant presence of a BCOR fusion and/or characteristic CNV breakpoints at chromosome 22q12.31 and chromosome Xp11.4 [32].