Lymphatic invasion predicts survival in patients with early node-negative non–small cell lung cancer

ObjectiveThe aim of this study was to assess the influence of lymphatic and vascular invasion on overall survival in patients with surgically resected non–small cell lung cancer (NSCLC) without lymph node and distant metastases.MethodsFrom January 1999 to December 2009, a total of 190 NSCLC patients with node-negative pT1-pT4 disease underwent radical resection with lymphadenectomy. Pathologic reports were reclassified to the TNM-7 version, and...