Ground glass-like lesions in the lungs are a breakthrough in the diagnosis of early lung cancer in recent years, for which there is no uniform conclusion. Recently a retrospective analysis study was conducted, which showed that GGO lesions with no change in stability have a 59% chance of being lung cancer, and the results of this study were published in the Annals of Thoracic Surgery in August 2013. Guanglock Wang, Department of Thoracic Surgery, Shenzhen People’s Hospital The data for this study were taken from patients who underwent surgical resection due to GGO from January 2004 to December 2009. All patients with GGO were detected by HRCT and followed up to surgery, and were followed up for at least 2 years after surgery using chest CT. Those with no significant change in GGO after at least 1 month of follow-up and those with enlarged nodules or the presence of solid components (regardless of size) inside the nodules were operated on. In the group of 46 cases, 39 cases showed no significant change during the follow-up period, and 7 cases were operated on because of enlargement of the lesion or the appearance of new solid components in the lesion during the follow-up period. In the no change group, there were 39 cases, of which 23 cases had cancer on postoperative pathology, including 21 cases of adenocarcinoma in situ, 1 case of microinvasive adenocarcinoma, and 1 case of invasive adenocarcinoma. In the group with changes, 5 cases were diagnosed as cancer. There were no significant differences between the two groups in terms of gender, time interval, and tumor size. There was no lymph node metastasis or recurrence in either group. This study showed that 59% of persistently stable GGO postoperative pathology was diagnosed as cancer, including adenocarcinoma in situ, microinvasive adenocarcinoma and invasive adenocarcinoma.