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1997年刊出了第5版抗癌国际联盟(UICC)的TNM分期系统,其中主要修改的内容有:(1)肝十二指肠淋巴结列为区域性淋巴结;(2)按淋巴结转移数分为pN1期(1～6个淋巴结)、pN2期(7～15个淋巴结)和pN3期(15个淋巴结);(3)T4N1亚组列为期肿瘤。而日本早在1962年提出日本胃癌研究协会(JGC)分
In 1997, the fifth edition of UICC’s TNM staging system was published. The main revisions included: (1) hepatobiliary lymph nodes were classified as regional lymph nodes; (2) lymph node metastases were scored Stages were pN1 (1 to 6 lymph nodes), pN2 (7 to 15 lymph nodes), and pN3 (15 lymph nodes); (3) T4N1 subgroups were classified as stage tumors. Japan proposed the Japan Gastric Cancer Research Association (JGC) as early as 1962.