CD274 and lung adenocarcinoma: Considering chest CT is the most common clinical screening and follow-up tool for lung nodules, this study intends to analyze the PD-L1 expression in GGN-like lung adenocarcinomas, and explore the predicting impact of CT-based radiomic features on PD-L1 expression, thus facilitate the immunotherapy for these patients and contribute to precision medicine for early-stage lung adenocarcinoma.