SAGE analysis demonstrated high expression of DLK1 in a subset of neuroblastoma (van Limpt et al, 2000), but a follow-up study did not find any genetic alterations (e.g. mutation, duplication or rearrangement) or LOI in neuroblastomas with DLK1 overexpression (van Limpt et al, 2003). The gene discussed is DLK1; the disease is neuroblastoma.