Discovery of primary lung cancer following resection of rectal cancer lung metastasis: A case report

Figure 2 Whole-body computed tomography scan. A: A ground-glass nodule (red arrow) is visible in the outer basal segment of the right lower lobe on the computed tomography scan taken on July 10, 2021; B: A nodule (red arrow) is observed in the outer basal segment of the left lower lobe; C: A ground-glass nodule (red arrow) is visible in the outer basal segment of the right lower lobe on the computed tomography scan taken on January 25, 2022; D: A nodule (red arrow) is observed in the outer basal segment of the left lower lobe on the computed tomography scan taken on January 25, 2022.