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Diseases & Conditions
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Kidney cancer is cancer that starts in the kidneys. The kidneys are part of the urinary system. They remove waste and excess fluid and electrolytes from the blood, control the production of red blood cells, and regulates blood pressure. Inside each kidney are more than a million small filtering units called nephrons. As blood circulates through the kidneys, the nephrons filter out waste products as well as unneeded minerals and water. This liquid waste is called urine, and it flows through two narrow tubes (ureters) into the bladder, where it is stored until it is eliminated from the body through another tube, the urethra.
Symptoms may include:
- blood in urine
- lump in the abdomen
- unexplained weight loss
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