IQGAP1 and hepatocellular carcinoma: The average IHC score of IQGAP1 and β-catenin expression was 4.58 and 4.17 respectively, a moderate expression, among 24 HCC samples with a high differentiation (Table 2), while an overexpression level for IQGAP1 and β-catenin, with IHC scoring 8.67±0.99 and 8.00±1.26 respectively, exited in the other 9 HCC tissues with a low differentiation level (p<0.05).