Abstract：ObjectiveTo explore the clinicopathological features of the lymph node metastasis rules of non-small cell lung cancer ( NSCLC).MethodsEighty cases of lung cancer patients underwent surgical resection and lymph node dissection of extensive hilar,leaves room and mediastinum.A total of 602 groups of lymph nodes were removed．The lymph node metastasis rules of NSCLC and their relations with clinicopathological features were analyzed．T stage,pathologic type,differentiation degree and the primary site were statistically analyzed.ResultsAmong the 602 groups of lymph nodes,the metastatic rates of N1 and N2 ( including N1+N2) nodes were 18.8% and 30.4%．There were significant differences in lymph node metastasis among primary lung cancer T stage T1,T2,T3 and T4(χ2=50.702，P=0.000).Saltatory metastatic nodes accounted for 31.8% of N2 metastatic nodes．ConclusionsLymph node metastasis is related with T staging of NSCLC，with more jumping mediastinal lymph node metastasis.There are no significant relationships between tumor location,pathological types or type of lymph node metastasis.
