HOME   Hypernephroma, or Renal adenocarcinoma, or Renal cell cancer Human body have two kidneys. Kidneys are fist-sized organs on either side of your backbone above your waistline. The tube inside kidney filters and cleans blood, taking out waste and resulting urine. Kidney cancer forms in the tubes inside kidneys. It happens most often in people over 40 years. Risk factors include smoking, having certain genetic conditions and misusing pain medicines for a long time. Often, kidney cancer usually doesn't have early symptoms. However, see your health care provider if you notice · Blood in your urine · A lump in your abdomen · Unexplained weight loss · Pain in your side · Loss of appetite Treatment of kidney cancer depends on your age, your overall health and how advanced the cancer is. It might include surgery, radiation, chemotherapy or biologic therapy. Biologic therapy boosts your body's own ability to fight cancer.