Results Tumor size, lymph node metastasis, invasion of neighboring organs and distant metastasis, and type of operative treatment were significantly related to the survival (P0.05).

• 结果肿瘤大小、淋巴结转移、有无邻近器官侵犯和远处转移、治疗方式对患者生存预后具有显著性意义(P0.；05)。