CD163 and invasive breast carcinoma: The results showed that the infiltration densities of CD68+ and CD163+ in BRCA nests were 15.2 ± 8.23 and 21.75 ± 9.18 per field, respectively; the infiltration densities of CD68+ and CD163+ in BRCA stroma were 20.59 ± 11.07 and 30.87 ± 12.95 per field, respectively.