ZEB1 and lung cancer: In this study, we aimed to evaluate the expression levels of epithelial cell marker E-Cadherin and mesenchymal cell markers Vimentin, ZEB1 and SNAI2 (SLUG) mRNA levels in surgically resected and paraffin embedded lymph node samples of lung cancer patients and to compare the overall survival rates of the lung cancer patients with Skip N2 and normal N2 metastasis.