HNF1B and carcinoma: Briefly, the expression of HNF1B and ECI2 mRNA was not statistically significantly different between the carcinoma and hyperplasia group (HNF1B: U = 278.0, Z = 1.51, p = 0.131; ECI2: U = 261.0, Z = 1.77, p = 0.078), although both genes showed a lower expression in AH (Fig. 2D, F).