<prompt> This is a specimen of nephrectomy, what is your diagnosis?Renal cell carcinomaRenal papillary adenomaUrothelial cancer of renal pelvisOncocytoma  <response>: Oncocytoma, Renal papillary adenoma are benign tumors. you need not do nephrectomy In Urothelial cancer of renal pelvis, the tumor is in the renal pelvis here it;s in the periphery This is a specimen of RCC- Clear cell typeClear cell carcinomas most likely arise from proximal tubular epithelium, and usually. occur as solitary unilateral lesions. They are bright yellow-gray-white spherical masses of variable size that disto the renal outline. The yellow color is a consequence of the prominent lipid accumulations in tumor cells.One of the striking characteristics of renal cell carcinoma is its tendency to invade the renal veinRef: Robbins Pathology; 9th edition; Page no: 954 