CD163 and colorectal carcinoma: CD163-positive cell count in CRC was significantly different from that in normal mucosa, adjacent tissues and adenoma tissues, with statistically significant differences (130.01 ± 45.24 vs. 40.64 ± 15.28, 70.25 ± 33.04, and 85.21 ± 44.69, P < 0.05).