MYCN is a well-known oncogene over-expressed in different human malignancies including neuroblastoma (NB), rhabdomyosarcoma, medulloblastoma, Wilms’ tumor, and small cell lung cancer (Lee et al., 1984; Garson et al., 1985; Nisen et al., 1986; Wong et al., 1986; Williamson et al., 2005). This evidence concerns the gene MYCN and medulloblastoma.