Wu F, et al. – Aim of this research was to assess computed tomography and histopathologic features of lung adenocarcinoma with pure ground–glass nodule (pGGN) ≤10 mm in diameter. They observed invasive lesions in 55.3% of subcentimeter pGGNs in this cohort. In addition, vessel changes, unsmooth margin, and clear lung–tumour interface may demonstrate the invasiveness of lung adenocarcinoma with subcentimeter pGGN.