PMC6000898_01
a and b: Microscopic examination revealed well to moderately differentiated tubular adenocarcinoma invading the submucosa.
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On microscopic examination, the lesion was identified as a well to moderately differentiated tubular adenocarcinoma invading the submucosa (Fig. 1a, b).
Chest computed tomography revealed a 1.2-cm nodule in the right upper lobe (a, single arrow) and 0.9-cm nodule in the right lower lobe (c, double arrows). On pathological examination, each lesion was identified as a moderately differentiated adenocarcinoma (b, d).
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One was a 1.2-cm nodule in the right upper lobe (Fig. 2a), and the other was a 0.9-cm nodule in the right lower lobe (Fig. 2c). Pathological examination revealed that both nodules were moderately differentiated adenocarcinoma, immunohistochemically negative for thyroid transcription factor-1, thereby, suggesting that they were pulmonary metastases from gastric cancer (Fig. 2b, d).
Chest computed tomography revealed a 0.9-cm nodule (coin lesion) in the right lower lobe (a, single arrow). Pathological examination indicated moderately differentiated adenocarcinoma (b).
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This nodule increased in size over next 3 months (Fig. 3a). Histologically, the 0.8-cm nodule was identified as a moderately differentiated adenocarcinoma, which was diagnosed as pulmonary metastasis from gastric cancer (Fig. 3b).