PMC7097517_01
A chest radiograph showed a huge mass in the right upper lung field and enlargement of the right hilum.
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A 50-year-old man was referred to our department for further investigation of a chest X-ray abnormality (Fig. 1A). A computed tomography (CT) scan revealed a mass in the right upper lung lobe (7.0 cm in diameter) that subsequently expanded to the right hilum, and pleural effusion on both sides (Fig. 1B). Multiple liver tumors were also detected and some were located at the subcapsular region (Fig. 1C). More than 60% of the liver parenchyma was replaced with metastatic tumors (Fig. 1D). Immunohistochemical staining of his metastatic liver tumor cells was diffusely positive for CD34 and MIB1, suggesting hypervascularity and high proliferation (Fig. 1E).
A: Chest CT revealed a mass in the right upper lung lobe, right hilar lymphadenopathy, and pleural effusion on both sides. B: Abdominal CT revealed multiple liver tumors, and some lesions were located at the subcapsular region.
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The results of cardiopulmonary and abdominal examinations were normal (see Fig. 2).