Low-power image showing intrarenal fairly circumscribed epithelial tumor with uniform polygonal cells arranged in sheets and nests with compressed renal parenchyma at periphery with hematoxylin-eosin (H&E) stain (A, ×20). High-power image showing polygonal cells with abundant granular eosinophilic cytoplasm with no significant atypia or mitoses with H&E stain (B, ×40).