Fig. 4

Expression of CD68, CD163, E-cadherin and vimentin in tumor cells. Increased expression of CD68 a1, a2, a3 and CD163 (b1, b2, b3) was observed in tumor cells, whereas there was absence or reduced expression of E-cadherin (c1, c2, c3), but strong cytoplasmic expression of vimentin (d1, d2, d3) at the invasive front of oral squamous cell carcinoma (a1-d1, 100×; a2-d2, 200×; a3-d3, 400×)