The methylation of EBNA1, LMP1, R ASSF1A, DAK, ITGA9, P16, WNT7A, CHFR, CYB5R2, WIF1, RIZ1, and FSTL1 genes was found to be significantly different in Moroccan patients with NPC compared to patients with NPC in Southern China. This evidence concerns the gene WNT7A and nasopharyngeal carcinoma.