Extended resections and other special cases in lung cancer surgery: Real-world population-based outcomes.

SIGNIFICANT FINDINGS OF THE STUDY: Extended resections for lung cancer include tumors spreading outside the lung The rate of extended resection was 14.9% in a population-based setting Major complications occurred in 7.5% and five-year survival was 75.6% What this study adds Complication rate and long-term outcome were similar compared to normal patients Guideline-based evaluation results with excellent outcome in real-world practice.