The Cox multivariate analysis revealed DM (HR 1.77, 95% CI 1.24–2.51, p = 0.002), serum albumin (HR 1.67, 95% CI 1.27–2.22, p< 0.001), and total tumor volume (HR 1.51, 95% CI 1.19–1.93, p = 0.001) as independent predictors of a poor outcome. This evidence concerns the gene ALB and diabetes mellitus.