A multivariate Cox regression analysis confirmed that greater tumor differentiation (HR (95% CI): 3.232 (1.273–8.208); P = 0.014), vascular invasion (HR (95% CI): 2.224 (1.253–3.949); P = 0.006) and CCT7 protein expression (HR (95% CI): 1.754 (1.047–2.937); P = 0.033) were independent risk factors for poorer OS. Here, CCT7 is linked to neoplasm.