[Surgery for stage 1 lung cancer].

Surgery is the present reference treatment for stage I non-small cell lung cancer. Lymph node dissection is required for mediastinal staging and discussion of postoperative treatments. In case of limited respiratory function, sub-lobar resection can be considered, either segmentectomy or atypical resection according to the tumour size. For radiological lesions with more than 50% of ground glass opacity, a wedge resection is acceptable if the resection margin is larger than 2 cm of healthy lung.