Fig. 2

A 63-year-old woman with a previous history of lobectomy of the right upper lobe (10 years earlier) for invasive adenocarcinoma and wedge excision of the left upper lobe (2 years earlier) for minimally invasive adenocarcinoma was referred for CT. This follow-up chest CT showed numerous subsolid nodules in both lungs, with two part-solid lesions in the right middle lobe, increasing in size and density. Axial CT-image in lung window setting shows a pure ground glass nodule in the apex (Fig. 2a) and more centrally located part-solid nodule (Fig. 2b) with both ground-glass and dense component. Histopathological examination after lobectomy showed an adenocarcinoma in situ in the pure ground glass lesion and minimally invasive adenocarcinoma in the subsolid lesion