Inclusion Criteria:  Patient whose age is ≥ 18 years old Patient with non-small cell bronchopulmonary cancer (NSCLC), at any stage, undergoing surgery in the Thoracic Surgery Department of the New Civil Hospital, Strasbourg. Patient who agreed to participate in this observational study. Patient affiliated to a social security system  Exclusion Criteria:  Refusal to participate in the study Known hepatitis, known HIV Subject under safeguard of justice Subject under guardianship or trusteeship Inability to give informed information about the subject (subject in an emergency situation, difficulties in understanding the subject) Pregnant Women