Survival and Risk Factors of Surgically Treated Mediastinal Invasion T4 Non-Small Cell Lung Cancer

N2-positive, T4 NSCLC with mediastinal involvement is not suitable for resection. T4 NSCLC patients with pulmonary great vessel involvement had better survival rates than other T4 subgroups. Pneumonectomy should be done with caution due to a high mortality risk and poor prognosis. Further studies are warranted to assess the role of sex on survival.