Renal cancer is a condition in which cancer cells are located in the lining of the tubules in the kidney (also called renal adenocarcinoma or renal cell cancer). We have two kidneys, one on either side of the spinal cord, just above the waist, behind the peritoneum. The blood is purified by small tubules in the kidneys. As urine, unabsorbed products formed. "Through a long tube called the bladder, the produced urine goes into the bladder. The urine is put away in the bladder until leaves through the urethra from the body." The urine is stored in the bladder until leaves through the urethra from the body. For much of its course, kidney cancer can remain clinically occult. In patients with metastatic disease, immunomodulatory agents and targeted treatment are the standard of care.