Fig. 3

Different types of nodules and microscopic pathological findings. a, b Male, 64, a shows an axial CT of the lung window lesion located in a solid pulmonary nodule in the left lower lobe, with a maximum diameter of 2.5 cm. b shows a 100x pathological microscopic image of invasive adenocarcinoma with more dissemination in the STAS. c, d Male, 61, c shows a CT axial lung window lesion located in a ground glass pulmonary nodule in the upper lobe of the right lung, with a tumor length of 1.5 cm. d shows a 100x pathological microscopic image of invasive adenocarcinoma with less dissemination in the STAS. e, f Male, 61. e shows a CT axial view of the lung window lesion located in a partial solid pulmonary nodule in the right upper lobe, with a CTR of 0.46. f shows a 100x pathological microscopic image of invasive adenocarcinoma with more dissemination in the STAS