Prognostic Factors in Resected T3 Non-Small Cell Lung Carcinoma: Perineural Invasion as a New Prognostic Factor

Background: Currently the best prognostic indicator for resected non-small cell lung cancer (NSCLC) is the TNM stage. Moreover, certain histopathological properties of the tumor (such as lymphatic, vascular and perineural invasion) can help to predict the survival of the patients. Patients and Methods: Between 1997 and 2004, the results of surgical treatment were retrospectively analyzed for 153 patients with T3 non-small cell lung cancer. One...