Lung cancer : journal of the International Association for the Study of Lung Cancer
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The natural history of lung adenocarcinoma with ground-glass opacity (GGO) remains undetermined. We describe a lung adenocarcinoma in which GGO transformed through a scar-like lesion over the long term into a solid nodule of poorly differentiated adenocarcinoma. Whether poorly differentiated lung adenocarcinoma can evolve from GGO-type adenocarcinoma is an important issue that requires clarification.