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Kidney Cancer

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Kidney Cancer

Kidney cancer begins in the kidneys. Your kidneys are two bean-shaped organs, each about the size of your fist. They're located behind your abdominal organs, with one kidney on each side of your spine.
In adults, renal cell carcinoma is the most common type of kidney cancer — about 90 percent of cancerous tumors. Other less common types of kidney cancer can occur. Young children are more likely to develop a kind of kidney cancer called Wilms' tumor.
The incidence of kidney cancer seems to be increasing. One reason for this may be the fact that imaging techniques such as computerized tomography (CT) scans are being used more often. These tests may lead to the accidental discovery of more kidney cancers. In many cases, kidney cancer is found at an early stage, when the tumors are small and confined to the kidney, making them easier to treat.

Symptoms

Kidney cancer rarely causes signs or symptoms in its early stages. And currently there are no routine tests used to screen for kidney cancer in the absence of symptoms. In the later stages, kidney cancer signs and symptoms may include:

  • Blood in your urine, which may appear pink, red or cola colored
  • Pain in your back or side that doesn't go away
  • Loss of appetite
  • Unexplained weight loss
  • Tiredness
  • Fever, which usually comes and goes (intermittent)