Unlike the two Ion Torrent platforms, in one tumor sample the Illumina platform called two different genetic variants [NM_001195132: c.35C > T (p.Ser12Leu) and c.35delC (p.Ser12TrpfsTer14)] in the same position of a CDKN2A amplicon (AMPL-225530996). This evidence concerns the gene CDKN2A and neoplasm.