 On HRCT screening, early lung adenocarcinoma often contains a nonsolid component called ground-glass opacity GGO. In 2011, pulmonary adenocarcinomas were classified into atypical adenomatous hyperplasia AAH, adenocarcinoma in situ AIS, minimally invasive carcinoma MIA and more extensively invasive adenocarcinoma IAC 1. Early adenocarcinomas with GGO-dominant always mean low-grade malignancy and have an extremely favorable prognosis 2-5. Previous studies have shown that patients with AAH, AIS and MIA have excellent survival rates 5-year survival rate is approximate 95 after resection, and only 0.83 - 2.91 patients have lymph node metastasis 6-9. At present, lymphadenectomy is always undergone in patients with pulmonary adenocarcinoma with ground-glass opacity. However, for MIA patients especially in T1a-b stage, the appropriate use of lymphadenectomy continues to be debated. 