UCLA’s Kidney Cancer Program includes: urologists, medical oncologists, radiation oncologists, pathologists, radiologists and clinical trial nurses. |
Kidney Cancer Program Achievements »
For decades, UCLA’s Kidney Cancer Program has prided itself on being able to offer patients access to ground-breaking experimental drugs in its Clinical Trials Program that allows patients to receive tomorrow’s approved drugs today. Until such time as a cure for this disease is found, the primary objective is focused on providing first-rate care for our patients, while making it possible for them to carry on a high quality of life.
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Overview
About Kidney CancerAccording to the American Cancer Society, an estimated 58,240 people in the United States will be diagnosed with kidney cancer (35,370 men and 22,870 women) and about 13,040 people will die from this disease. As with all cancers, early diagnosis of kidney cancer dramatically improves the chance for survival. Although the prognosis is relatively poor for kidney cancer that is advanced (metastasized), promising new treatments for kidney cancer are improving the outlook for patients.
Kidney Anatomy
Most people have two kidneys.- The kidneys produce urine, which drains through narrow tubes (called ureters) into the urinary bladder (Figure 1).
- The kidneys are located toward the back of the flank, with one kidney on either side (Figure 2).
- The kidney is contained within a fibrous layer called Gerota's Fascia (Figure 3).
Kidney Function
The main function of the kidneys is to produce urine. However, the kidney accomplishes many other important functions during urine production. By adjusting the composition of the urine, the kidney regulates the body's electrolytes (e.g. sodium, potassium, calcium, magnesium, etc.), regulates the body's fluid balance, regulates the body's acid-base balance and eliminates certain waste products made by the body.When the kidneys are damaged or a significant portion of kidney tissue is removed, its normal processes may be impaired. In most cases, mild to moderate impairment causes very minor problems. In cases when kidney function is severely impaired, dialysis may be required.
Treatment Options »
Types of Kidney Cancer
Renal Kidney CancerRenal Cell Carcinoma (RCC) is the most common type of kidney cancer, accounting for approximately 85% of all malignant kidney tumors. In RCC, cancerous (malignant) cells develop in the lining of the kidney tubules and grow into a mass called a tumor. Like many other cancers, the growth begins small and grows larger over time. RCC typically grows as a single mass. However, there are cases where a kidney may contain more than one tumor, or tumors are found in both kidneys at the same time.
Sub-Types of Renal Cell Carcinoma (RCC):There are five main sub-types of renal cell carcinoma that are identified by examining the tumor under a microscope: clear cell, papillary, chromophobe, collecting duct and "unclassified."
More about sub-types of renal cell carcinoma (RCC) »
Other Types of Cancerous Kidney Tumors
RCC accounts for about 90% of malignant kidney tumors. Less common types of cancerous tumors include transitional cell carcinomas, Wilms tumors and renal sarcomas.About transitional cell carcinoma and benign kidney tumors »
Incidence – Risk Factors
Renal and Adrenal Tumors Biology and ManagementEdited by Arie Belldegrun, MD, FACS, Alastair WS Ritchie, et al. 2003 Oxford University Press |
- Age. The risk of kidney cancer significantly increases with age, most kidney cancers occur in people over 45 years of age; with the highest incidences between the ages of 55 and 84.
- Gender. Men are twice as likely to develop kidney cancer as women.
- Race. African American men have a slightly higher risk than Caucasian men of developing renal cell carcinoma.
- Smoking. Smokers are at greater risk than nonsmokers. The risk increases the longer you smoke and decreases after you quit, although it takes years to reach the same risk level as someone who has never smoked.
- Obesity. Studies have found a strong link between excess weight (in both men and women) and renal cell carcinoma.
- High blood pressure (hypertension). Having high blood pressure increases the risk of developing renal cell carcinoma. The risk is even greater if you are also overweight.
- Dialysis. People who receive long-term dialysis for treatment of chronic renal failure are at greater risk of developing kidney cancer, possibly because renal failure depresses the immune system. People who have a kidney transplant and receive immunosuppressant drugs also are more likely to develop kidney cancer.
- Radiation. In some cases, exposure to radiation may increase your risk of kidney cancer.
- Heredity. Tuberous sclerosis (a disease characterized by several bumps on the skin, seizures, mental retardation, and cysts in the kidneys, liver and pancreas) and von Hippel-Lindau disease (a disease caused by a genetic mutation that leads to multiple tumors in the kidney, often at an early age) are both associated with an increased risk of developing kidney tumors. Most often in tuberous sclerosis the tumors are benign. However, in von Hippel-Lindau disease, the tumors are usually malignant.
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