The TLR4 staining score in the tumor epithelium was classified by tumor grade: well-differentiated = 0.57, moderately-differentiated = 0.84, poorly-differentiated = 0.00, or undifferentiated = 0.23 (ANOVA comparing all four categories, p = 9.99 × 10−9). This evidence concerns the gene TLR4 and neoplasm.