[Interpretation of update on The AJCC Esophageal Cancer Staging System, Eighth Edition].

The recently published AJCC Esophageal Cancer Staging System, 8(th) Edition will be implemented on Januray 1, 2018, which was developed by Worldwide Esophageal Cancer Collaboration based on 22 654 esophageal cancer patients from 33 worldwide centers. The definition of T, N, M, G stage and regional lymph nodes were optimized in the 8(th) edition. And the new "2 cm" principle has simplified the definition for the cancer of esophagogastric junction. In addition to pathologic staging, the 8(th) edition also provided clinical staging and pathologic staging after neoadjuvant therapy, making the new esophageal cancer staging system more practicable and reasonable.近期公布的AJCC第8版食管癌分期系统将于2018年1月1日开始正式实施执行。国际食管癌协作项目组基于全球33家医疗中心的22 654例食管癌病例进行了该版分期系统的修订工作。第8版食管癌分期系统进一步完善了T、N、M、G分期及区域淋巴结的定义，提供了简化的食管胃交界部癌"2 cm"原则。第8版分期系统最重要的更新是增加了临床分期及新辅助治疗后的病理分期，大大提高了该分期系统的临床实用性及合理性。.