MYCN and medulloblastoma: Additionally, we characterized 12 new samples in which we detected 158 manually confirmed somatic SV including a TERT promoter mutation and complex SV involving the TERT gene, chromoplexy involving 8 chromosomes, chromothripsis involving chromosome 8, ecDNA amplification of MYCN and a germline interchromosomal SV occurring near a medulloblastoma candidate gene family.