Kidney Cancer

Quick GuideCancer 101 Pictures Slideshow: A Visual Guide to Understanding Cancer

Cancer 101 Pictures Slideshow: A Visual Guide to Understanding Cancer

How is kidney cancer diagnosed?

If you have symptoms that suggest kidney cancer, your doctor will try to find out what's causing the problems.

You may have a physical exam. Also, you may have one or more of the following tests:

  • Urine tests: The lab checks your urine for blood and other signs of disease.
  • Blood tests: The lab checks your blood for several substances, such as creatinine. A high level of creatinine may mean the kidneys aren't doing their job.
  • Ultrasound: An ultrasound device uses sound waves that can't be heard by humans. The sound waves make a pattern of echoes as they bounce off organs inside your abdomen. The echoes create a picture of your kidney and nearby tissues. The picture can show a kidney tumor.
  • CT scan: An x-ray machine linked to a computer takes a series of detailed pictures of your abdomen. You may receive an injection of contrast material so your urinary tract and lymph nodes show up clearly in the pictures. The CT scan can show cancer in the kidneys, lymph nodes, or elsewhere in the abdomen.
  • MRI: A large machine with a strong magnet linked to a computer is used to make detailed pictures of your urinary tract and lymph nodes. You may receive an injection of contrast material. MRI can show cancer in your kidneys, lymph nodes, or other tissues in the abdomen.
  • IVP: You'll receive an injection of dye into a vein in your arm. The dye travels through the body and collects in your kidneys. The dye makes them show up on x-rays. A series of x-rays then tracks the dye as it moves through your kidneys to your ureters and bladder. The x-rays can show a kidney tumor or other problems. (IVP is not used as commonly as CT or MRI for the detection of kidney cancer.)
  • Biopsy: The removal of tissue to look for cancer cells is a biopsy. In some cases, your doctor will do a biopsy to diagnose kidney cancer. Your doctor inserts a thin needle through your skin into the kidney to remove a small sample of tissue. Your doctor may use ultrasound or a CT scan to guide the needle. A pathologist uses a microscope to check for cancer cells in the tissue.
  • Surgery: After surgery to remove part or all of a kidney tumor, a pathologist can make the final diagnosis by checking the tissue under a microscope for cancer cells.

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