Fig. 1
From: Expression of toll-like receptors in non-endemic nasopharyngeal carcinoma
TLR5 and TLR7 expression in nasopharyngeal carcinoma and in the normal epithelium. a H&E staining in non-keratinizing undifferentiated carcinoma (NK-U). b H&E staining in keratinizing squamous cell carcinoma (KSCC). c Mild positive TLR5 expression in NK-U. d Strong positive TLR5 expression in KSCC. e Moderate positive TLR7 expression in NK-U. f Moderate positive TLR7 expression in KSCC. g Positive TLR5 staining in benign nasopharyngeal epithelium. h Positive TLR7 staining in benign nasopharyngeal epithelium. Magnification × 250