The last study was on the role of lymph node extent in the mediastinum in stage 3 disease. Guidelines such as that only a single station is resectable and all other, more than one station, is considered unresectable. However, our data show that after neoadjuvant chemo or chemoradiation treatment that the number of complete responses in single or in multiple stations is exactly the same. Also, the number of persistent positive lymph nodes is the same for single and multiple stations which comes to the conclusion that the decision about resectable disease has to be done after neoadjuvant treatment and not before and a larger number of patients should be included into such a neoadjuvant treatment followed by surgery.