To select for osteosarcoma samples with amplification events in the 17p11.2-p12 region, we performed qPCR for test genes SCO1 at 10.6 Mb (p12), MAP2K4 at 11.9 Mb (p12), MYOCD at 12.6 Mb (p12), COX10 at 14.0 Mb (p12), PMP22 at 15.1 Mb (p12), NCOR1 at 16.1 Mb (p11.2-p12), COPS3 at 17.2 Mb (p11.2), and TOM1L2 at 17.8 Mb (p11.2) on 85 tumours. This evidence concerns the gene MAP2K4 and neoplasm.