A: (a) clear cell carcinoma. (b) sarcomatoied carcinoma. B: Sarcomatoied renal cell carcinoma with (a) spindle cell with (b)hyperchromatic nuclei 10X. C: Sarcomatoied renal cell carcinoma with spindle cell with hyperchromatic nuclei 40X. D: Clear cell carcinoma of kidney in high concentration of uranium 4X.