In basal cell carcinoma (BCC), TLR4 expression was seen on cell membranes of the cancerous epithelium (Figure 2c) and in highly malignant squamous cell carcinoma (SCC), there was a strong membrane positive expression of TLR4 on almost all of the cancerous epithelium (Figure 2d). This evidence concerns the gene TLR4 and basal cell carcinoma.