This is a clinical trial from Eastern Cooperative Thoracic Oncology Project (ECTOP), numbered as ECTOP-1019. The goal of this clinical trial is to confirm the therapeutic effect of sublobar resection for AIS/MIA diagnosed by intraoperative frozen section.
Patients who sign the informed consent form and are willing to complete the study according to the plan;
Aged from 18 to 80 years old;
ECOG equals 0 or 1;
Not receiving lung cancer surgery before;
Not cT1N0M0;
Cannot be completely resected by sublobar resection;
Invasive lung adenocarcinoma or not lung adenocarcinoma diagnosed cytologically or pathologically;
Receiving lung cancer surgery before;