CD68 and neoplasm: Kaplan–Meier survival analysis revealed a significant association between stromal CXCL8 and CD68+ cell density, with a significant reduction in survival of patients whose tumours were high for both compared to those high for one and low for both markers (HR = 1.880, 95% CI: 1.299–2.720, p = 0.001) (Figure 3A).