case_images: PMC6188190_01
case_images: Abdominal computed tomography revealing a right renal enhancing mass about 5 cm in length, accompanied by the parenchyma invasion and pelvis expansion of the right kidney.. Notes: (A) Cross section and (B) coronal plane.
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case_images: PMC6188190_01_ott-11-6839Fig1.jpg
case_images: f1-ott-11-6839
case_images: After delivery, abdominal CT was performed and revealed a right renal enhancing mass about 5 cm in length, accompanied by the parenchyma invasion and pelvis expansion of the right kidney (Figure 1).
case_images: (A and B) Removing the entire right kidney under robot-assisted laparoscopic nephrectomy.
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case_images: PMC6188190_01_ott-11-6839Fig2.jpg
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case_images: Subsequently, we performed robot-assisted laparoscopic nephrectomy for the patient and removed the entire right kidney successfully (Figure 2A-B).
case_images: Pathological features of the surgical specimen.. Notes: (A and B) Microscopic view of the tumor of the right kidney with H&E staining, revealing that tumors were composed of a monotonous population of small round cells. Immunohistochemical staining was positive for (C) CD99, (D) SYN, (E) FLI1 and (F) Ki67. Magnification details: (A) 40x; (B) 200x; (C) 100x; (D) 100x; (E) 200x; (F)100x.
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case_images: PMC6188190_01_ott-11-6839Fig3.jpg
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case_images: Extensive necrosis was also observed in histologic sections (Figure 3A-B). FLI1 and 30% positive staining for Ki67 (Figure 3C-F). FISH analysis demonstrated more than 10% of cells were positive, indicating EWSR1 gene rearrangement (Figure 4).
case_images: Fluorescence in situ hybridization testing demonstrated that more than 10% of cells were positive indicating EWSR1 gene rearrangement.
case_images: ott-11-6839Fig4.jpg
case_images: PMC6188190_01_ott-11-6839Fig4.jpg
case_images: f4-ott-11-6839
case_images: FLI1 and 30% positive staining for Ki67 (Figure 3C-F). FISH analysis demonstrated more than 10% of cells were positive, indicating EWSR1 gene rearrangement (Figure 4).