IL18 and hepatocellular carcinoma: The first SNP to be discussed is IL-18 -607 C>A, its genotyping revealed that the frequency of the homozygous wild CC, heterozygous CA and homozygous mutant AA genotypes among HCV group were 19(27.1%), 42(60%) and 9(12.9%) respectively versus 16(20%), 30(37.5%) and 34 (42.5%) in the HCC group.