Kidney cancer is also called renal cancer. It is one of the ten most common cancers in both men and women. In 2018, about 63,340 new cases of kidney cancer will occur.
Kidney cancer cells can spread through the lymph nodes and blood vessels to the lungs, bones or liver. When this happens, the cancer has metastasized and new tumors may form in those parts of the body.
These are the two most common types of kidney cancers:
- Renal cell carcinoma: About 9 out of 10 kidney cancers are renal cell carcinomas. About 54,000 Americans are diagnosed with renal cell carcinoma each year. Most are over 55 years old.
- Transitional cell carcinoma: About 5 to 10 of every 100 cancers in the kidney are transitional cell carcinomas. These carcinomas don’t start in the kidney itself but in the lining of the renal pelvis.