PMC9613376_01
Abdominal CT scan, axial plane, demonstrating the left renal mass.
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A CT scan of the abdomen revealed a 2.2 cm mass in the lower pole of the left kidney (Figure 1).
Photomicrographs of the tumor. A - Wholemount showing cross-section of the tumor (H&E 4x); B - Tumor in relation to renal parenchyma (H&E 40x); C - Medium power photomicrograph showing cytologic details (H&E 100x); D - Tumor composed of uniform, round to polygonal cells with clear to eosinophilic cytoplasm (H&E 200x).
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The stroma was scant, mitoses were rare, and necrosis was not identified (Figure 2).
Photomicrographs of the tumor. A - Tumor cells are positive for CD117 (100x) and; B - CD34 (100x).
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Immunohistochemical stains showed the tumor cells to be positive for CD117, CD34 and CD10 (Figure 3).