CD8A and metastatic malignant neoplasm in the lymph nodes: In the SCRC set, the univariate analysis demonstrated that lymph node metastasis, TNM stage, tumor differentiation, tumor deposit, and CD8+ T cell density were associated with OS (p < 0.05), and multivariate analysis results showed that only TNM stage, tumor deposit, and CD8+ T cell density were independent factors for OS (p < 0.05).