FIGURE 4.
CT images and corresponding HE histologic findings in peripheral LAC characterized by pGGN. Top row: images in a 43‐year‐old man with LAC. CT manifestation is pGGN; a corresponding pathological manifestation has no obvious TLSs in tumor tissues. Bottom row: images in a 64‐year‐old woman with LAC. CT manifestation is pGGN, a corresponding pathological manifestation is grade I immature TLSs. CT, computed tomography; HE, hematoxylin and eosin stain; LAC, lung adenocarcinoma; pGGN, pure ground‐glass nodule; TLSs, tertiary lymphoid structures.