Figure 2: Clear cell carcinoma in right kidney, grade □. (a) tMIP image: significantly strengthen irregular film in dorsal side of left kidney. (b) perfusion of lesions showed white high perfusion shadow, ROIT1: P: 193.72 ml/min/100g, PEI: 340.54 Hu, BV: 80.42 ml/100g. Pathological picture: HE × 400. Clear Cytoplasm was seen in tumor cells. The size of nucleus was uneven. Nucleolus was frequently seen.