Besides MYCN amplification (the hallmark of high-risk neuroblastoma), chromosomal alterations—specifically copy number variants at 1p, 11p, 2p, 3p, 4p, 6p, 6q, 1q, 11q and 17q—have been identified using array-CGH and single nucleotide polymorphism (SNP) analyses [3,5,36,37,39,40,41,42,43]. Here, MYCN is linked to neuroblastoma.