TNFSF11 and neoplasm: Post hoc analysis revealed statistically significant differences in RANKL expression between tumor front and normal mucosa in all three groups; NI group (mean rank 3.50 versus 1.00, p = 0.013), E group (mean rank 3.25 versus 1.0, p = 0.004) and I group (mean rank 3.57 versus 1.14, p = 0.003).