5. Kidney cancer can be of two types
There are two main types of kidney cancer — renal cell cancer and transitional cell cancer. The most common type of kidney cancer is renal cell cancer, which begins in the lining of the renal tubules responsible for cleaning the blood and making urine. Renal cell cancer can spread to other parts of the body, most often the bones or lungs. While in case of transitional cell cancer, it happens in the middle part of the kidney called the renal pelvis. It is here where the urine gets collected and drains into the urethra. This cancer can at times spread to the urethra too. However, transitional cell cancer is very rare and uncommon. Most often, it is renal cell cancer that affects people.