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国际上恶性肿瘤临床TNM分类法的产生是为肿瘤学家规定一种共同的语言,借以比较临床病例的结局,评价各种治疗和估计病人的预后。目前最通用的二种TNM分类法是国际抗癌联合会(UI CC)和美国癌症研究协会(AJ C)制定的。1977年之前转移性颈淋巴结的分期法,AJC和UICC完全一致。自1977年起AJC修订了这一分期法,把淋巴结的确切大小、单个或多个、同侧、两侧或对侧作为依据。1982年UI CC分期法删除了N_(1a)和N_(2a),因这两期原指触及的转移性淋巴结,而临床上未找到原发病灶,其余部分基本不变。(请参阅本刊1985,9
The international clinical TNM classification of malignant tumors is to create a common language for oncologists, in order to compare the outcome of clinical cases, evaluation of various treatment and prognosis of patients. The two most commonly used TNM taxonomies were developed by the International Union Against Cancer (UI CC) and the American Association for Cancer Research (AJC). Staging of metastatic cervical lymph nodes prior to 1977 was consistent with AJC and UICC. Since 1977, AJC revised this staging method based on the exact size, single or multiple lymph nodes, ipsilateral, bilateral or contralateral. 1982 UI CC staging method to delete N_ (1a) and N_ (2a), due to the two originally referred to metastatic lymph nodes, and clinically not found the primary lesion, the rest of the basic unchanged. (See this issue 1985,9