Study of the Expression of Met Receptor Fragments in Non Small Cell Lung Cancers

* Patient information and collection of signed inform consent * Blood sample collection before bronchoscopy or before surgery, at the same time as a usual blood assessment. * Prospective collection of bronchial biopsies of patients with metastatic non small cell lung cancer, during a bronchoscopy at the Oscar Lambret Center (Dr Dansin) * Prospective collection of resected specimens of patients with localized non small cell lung cancer, who were operated at the thoracic surgery unit of the University hospital (Pr Porte) * Transportation of the samples to the pathology laboratories (Dr Robin, Pr Copin) * Selection of blocks of interest and preparation of tumor samples * Clinical data collection : date of biopsy or surgery, disease-free survival, overall survival, tumor characteristics, EGFR status, ALK, BRAF, HER2 * Transportation of tumor blocks and blood samples to the Institute of Biology of Lille for analyses: Western blot, immunohistochemistry and ELISA test) * Return to storage of the tumor samples at the Oscar Lambret Center and at the University hospital of Lille