Interestingly, recurrent mutations of genes previously reported to be mutated in cancer: ABL1, BUB1B, NCOR1 (each mutated in three tumours), and CARS, HSP90AB1, NCOA1 (each mutated in two tumours) were uniquely found in recurrent/metastatic NPCs (n=33). This evidence concerns the gene NCOR1 and neoplasm.