Objective: This study aimed to demonstrate survival assessment and determine survival of the number of metastatic stations which N2 lymph node station was involvement. Material and Methods: Ninety six (10.6%) patients with N2 lymph node metastasis in 901 patients who had been operated for Non-Small Cell Lung Cancer (NSCLC) at hospital from January 2009 to October 2013, were included in the study. The patients were analized under two main headings. In the first title the survival analysis was

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... formed depending on single station or multiple stations of lymph node involvement. In the second title patients were divided into 5 groups according to metastatic lymph node stations. Group 1 was composed of superior (No 2&4) stations metastases (20.8%), Group 2 was aorticopulmonary window (No 5&6) stations metastases(26%), Group 3 was central (No 7) station (13.5%), Group 4 was inferior (No 8&9) stations metastases(14.6%) and Group 5 was multiple station metastases were determined (25%). Results: Average survival time was 33.3 months and the median survival time was 30.8 months. In patients with mediastinal lymph node metastasis, comparison of survival difference in single-multiple stations; median survival of 55.7 months in single station and median survival of 25.5 months in multiple stations has been found. Single station involvement was determined to caused statistically significant better survival (p <0.05). Group 1&2 in comparison to 3&5 lead to better survival and statistical significance (p <0.05) was observed. Conclusion: Single station N2 involvement should be expected in better survival rates compared to the involvement of multiple stations. Due to decreased survival observed especially with the involvement of level 7 station. It has to be sampled in pre-peri operative period.