Is lobe-specific lymph node dissection appropriate in lung cancer patients undergoing routine mediastinoscopy?
GROUND: The extent and the necessity of lymph node dissection has yet to be defined after resectional surgery for lung cancer. We aimed to analyze the lobe-specific extent of lymph node positivity in patients who underwent preoperative mediastinoscopy as a routine strategy. METHODS: A total of 280 patients with non-small cell lung cancer with negative mediastinoscopy were operated on in our center between January 1997 and June 2003. Hilar and mediastinal lymphadenectomy was performed in every patient. RESULTS: The most commonly involved lymph nodes were found to be paratracheal station lymph nodes (n = 83; 96.5 %) for right upper lobe tumors, subcarinal station lymph nodes (n = 52; 88.1 %) for right lower lobe carcinomas, aorticopulmonary lymph nodes (n = 62; 92.5 %) for left upper lobe and subcarinal station lymph nodes (n = 49; 96.0 %) for left lower lobe tumors. In the patients with right upper lobe, right lower lobe and left lower lobe tumors, the presence of a tumor at these stati
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