A multiple-center study on the effect of different ways of lymph node dissection on the prognosis of less than 3cm ground glass nodules with more than solid components

Inclusion Criteria:

1. Aged between 18 and 75 years;
2. GGO is diagnosed by lung CT and failure to subside after 3 months (the patient having been re-examined by thin-section CT);
3. The maximum diameter of the GGO is smaller than 3cm;
4. The maximum diameter of the solid component in the GGO is more than 50%;
5. The patient is able to undergo the lobectomy
6. The patient is able to understand and comply with the study and has provided written informed consent.

Exclusion Criteria:

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Patients meeting any of the following criteria are not eligible for this trial:

1. Patients with a history of using immunosuppressive or hormonal drugs;
2. Patients receiving radiotherapy or chemotherapy;
3. Patients who fail to comply with our follow-up strategy;
4. Other situations that are not in conformity with the standards and requirements of this trial.