The MYCN normal diploid status detected using gDNA was confirmed using cfDNA for the neuroblastoma cell lines, CLB-GA and SK-N-AS, as well as the MYC-amplified medulloblastoma and colon adenocarcinoma cell lines used as controls for MYCN assay specificity (Figure 4, Table 1). The gene discussed is MYCN; the disease is colon adenocarcinoma.