Fig. 2.

Right renal clear cell carcinoma, grade II with in a patient of 63 years old (male). a Enhanced scan in medulla phase, the substantial part of the right kidney lesions showed irregular peripheral enhancement, and the central part with necrosis and cystic degeneration showed no enhancement. b DWI lesions showed mixed high signal intensity in both the tumor parenchyma and central cystic area. c The EADC lesions showed peripheral high signal and central low signal, which was in accordance with what was displayed by enhanced scanning. In the background of gray kidneys, the lesion was highlighted with a clear internal structure. The high signal indicates the substantial part of the tumor. d ADC lesions showed mixed high signal, with high signal in central necrosis part and low signal in surrounding parenchyma part. Compared with the enhanced scan and EADC map, the peripheral part of the kidney was less legible by ADC map. The abdominal intestinal signal was cluttered. Compared with the ADC map, EADC map showed much clean background and much clear image