Stages Of Kidney Diseases

Stage I:
Cancer is in the kidney only and the size of the tumor is less than or equal to 7.0 cm in diameter. The estimated five-year survival of patients with this stage is over 90 percent.

Stage II:
Cancer is in the kidney only and the size of the tumor is greater than 7.0 cm in diameter. The estimated five-year survival of patients with this stage is over 75 percent.

Stage III:
The tumor in the kidney may be any size, but does not extend beyond the layer of tissue (Gerota's fascia) that encapsulates the kidney and adrenal gland. Additionally, cancer has spread to the main blood vessel that carries blood away from the kidney (the renal vein), to the blood vessel that carries blood from the lower part of the body to the heart (inferior vena cava), or to the adjacent adrenal gland. The estimated five-year survival of patients with this stage is over 65 percent, depending on involved sites.

Stage IV:
Tumor in the kidney extends beyond Gerota's fascia and/or cancer has spread to more than one lymph node near the kidney. Evidence that cancer has spread to other organs in the body, such as the lungs, liver, brain, bones, intestines or pancreas, also indicates Stage IV disease. The estimated five-year survival of patients with this stage is less than 10 percent

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