CD68 and colorectal carcinoma: Stage I CRC patients with high density of CD68+ macrophage infiltration in primary tumors had a mean DSS of 25.1 (95% CI: 23.0–27.3) years, and patients with <100 CD68+ macrophages detected/TMA spot had a DSS of 23.0 (95% CI: 18.4–27.5) years, although the difference was not significant (log-rank p = 0.12).