Mediastinal lymph node dissection in segmentectomy for peripheral c-stage IA (≤2 cm) non-small-cell lung cancer

The necessity of mediastinal lymph node dissection (MLND) in segmentectomy remains uncertain as recent trials on intentional segmentectomy have made MLND mandatory. We conducted a retrospective study to evaluate the necessity of MLND in segmentectomy for patients with peripheral stage IA (≤2 cm) non-small-cell lung cancer (NSCLC).