Figure 1.

The image and gross appearance of rPNET. (A) CT scan of the kidney demonstrated a 12×10×10 cm substantive tumor involving the lower pole of the right kidney, then, after administration of the contrast medium, the tumor showed inhomogenous contrast enhancement with focal cystic and necrotic areas. (B) The substantive tumor measuring 13×13×9 cm replacing the lower pole of the right kidney was integratedly resected. (C) After slitting the specimen, a white sizable tumor with interspersed areas of hemorrhage and necrosis could be seen (arrow: the upper pole of the right kidney).