The results showed that the expression of HNF1B was significantly correlated with tumour grade (p = 0.002), where a lower expression was associated with a higher tumour grade, with the following post-hoc intergroup differences: G1 vs. G2 (p = 0.032), G1 vs. G3 (p = 0.019), G1 vs. G4 (p = 0.025), G2 vs. G3 (p > 0.05), G2 vs. G4 (p > 0.05), G3 vs. G4 (p > 0.05) (Fig. 3). The gene discussed is HNF1B; the disease is neoplasm.