PMC6010610_01
A chest radiography showing multiple circular masses of various sizes.
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A chest radiography showed multiple circular masses of various sizes (Fig. 1).
Transverse thin-section enhanced computed tomography image (thickness: 1 mm) from 15 mm (A) and 25 mm (B) below the tracheal carina, showing well-defined nodules with the extrapleural sign and an oval nodule in the right interlobar pleura (arrow).
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Transverse computed tomography (CT) images showed multiple well-defined nodules with low density regions and the extrapleural sign, as well as an oval nodule in the right interlobar pleura (Fig. 2).
Ultrasound-guided biopsy specimens showing the diffuse proliferation of tumor cells with a clear or vacuolated cytoplasm, which were positive for CD10 (inset).
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The ultrasound-guided transcutaneous biopsy specimens obtained from the pleural mass demonstrated the diffuse proliferation of tumor cells with a clear or vacuolated cytoplasm (Fig. 3), which were positive for CD10, PAX8, vimentin, and CAM5.2, but negative for mesothelial cell markers such as HBME-1 and thrombomodulin.
Abdominal computed tomography image showing a solitary left renal tumor (arrow).
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These findings indicated metastatic clear cell carcinoma of the kidney, and a solitary left renal tumor was observed on abdominal CT (Fig. 4).