الفهرس 
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Abstract
Renal cell carcinoma is the most common malignant neoplasm of renal parenchymal origin. It comprises 80% to 90 % of primary malignant renal neoplasms in the adult age group, with the remainder represented by urothelial malignancies of the renal pelvis, and renal sarcoma. InEgypt, the urinary system malignant tumors. The main bulk was dominated by the urinanary bladder malignancies 26.93% the rest of the urinary system malignancies constituted a minority of only 0.72 % renal tumors represented b2.42% ofurinary system malignancies renal cell carcinoma represented 35.365 OF ALL RENAL TUMORS IN Eygpt Mokhtar, 1991.