case_images: PMC6220404_01
case_images: CT image showed right renal mass (arrow).
case_images: CRIPA2018-6407360.001.jpg
case_images: PMC6220404_01_CRIPA2018-6407360.001.jpg
case_images: fig1
case_images: CT revealed a mass measured in 9.7x7.0 cm in the lower portion of the right kidney (Figure 1). CT also revealed multiple small nodules in lower lobes of lungs, suspecting metastatic tumors (Figure 2).
case_images: CT image showed right lung mass suspected for metastasis (arrow).
case_images: CRIPA2018-6407360.002.jpg
case_images: PMC6220404_01_CRIPA2018-6407360.002.jpg
case_images: fig2
case_images: CT revealed a mass measured in 9.7x7.0 cm in the lower portion of the right kidney (Figure 1). CT also revealed multiple small nodules in lower lobes of lungs, suspecting metastatic tumors (Figure 2).
case_images: Gross findings of the tumor. 55x94 mm white to tan tumor occupied the lower portion of the right kidney. Marked hemorrhage was found (a, b).
case_images: CRIPA2018-6407360.003.jpg
case_images: PMC6220404_01_CRIPA2018-6407360.003.jpg
case_images: fig3
case_images: Grossly, 55x94 mm white to tan tumor occupied the lower portion of the right kidney (Figure 3).
case_images: Microscopic findings of the tumor. (a) Tumor cells grow in a solid sheet. (b) Hemorrhage was marked. (c) Tumor cells have relatively bland nuclei and clear to eosinophilic cytoplasm. Cell border is indistinct. (d) Mitosis is observed (hematoxylin & eosin staining, (a, b): x5, (c): x20, (d): x40).
case_images: CRIPA2018-6407360.004.jpg
case_images: PMC6220404_01_CRIPA2018-6407360.004.jpg
case_images: fig4
case_images: Microscopically, polygonal to ovoid tumor cells with round nuclei and clear to eosinophilic cytoplasm made solid tumor (Figure 4). Mitosis was found in 5/10 high power field (Figure 4).
case_images: Immunohistochemical analysis. Tumor cells are positive for (a) CD34, (b) SMA, and (c) Renin. (d) MIB1 labeling index was 4% ((a, b, d): x10, (c): x20).
case_images: CRIPA2018-6407360.005.jpg
case_images: PMC6220404_01_CRIPA2018-6407360.005.jpg
case_images: fig5
case_images: CD34 were positive (Figure 5). Cytokeratin (AE1/AE3), cytokeratin (CAM5.2), EMA, PAX8, S-100, HMB45, c-kit, and STAT6 were negative. MIB1 labeling index was 4% (Figure 5).
case_images: Ultrastructurally, near rhomboid crystalline structures were observed.
case_images: CRIPA2018-6407360.006.jpg
case_images: PMC6220404_01_CRIPA2018-6407360.006.jpg
case_images: fig6
case_images: Ultrastructurally, near rhomboid crystalline structure was observed (Figure 6).