Types of Kidney Cancer
are several types of kidney cancer, depending on the type of cells or tissue affected:
- Renal cell carcinoma – a kidney cancer is considered as renal cell
carcinoma (also called hypernephroma) when the tumor begins in the lining of the small tubes in the kidney
that filter the blood and remove waste products; the cancer may affect one or both kidneys. Renal cell
carcinoma is the most common form of kidney cancer; it accounts for nearly 90% of all kidney cancer cases.
Some subtypes of renal cell
clear cell renal cell
papillary renal cell
chromophobe renal cell
collecting duct renal cell
- Transitional cell
carcinoma (TCC) –
also called urothelial cell carcinoma (UCC), transitional cell
carcinoma it is the second most common form of kidney cancer. A kidney cancer is considered as an
urothelial cell carcinoma when the tumor develops in the
tissue of the tubes that connect the kidneys to the bladder. Transitional cell carcinoma is responsible for 5% to 10% of all kidney cancers.
- Wilms tumors – this
form of kidney cancer affects, most of the times, children aged less than five years old; it
rarely diagnosed in adults.
It is a
rare form of kidney cancer, affecting approximately 500 children in the United States each
- Renal sarcoma
- this rare type of
kidney cancer usually begins in the kidney's connective tissue. It is an aggressive tumor that requires
complete surgical extirpation to prevent complications. Renal
sarcoma represents about 1% of all kidney cancer cases.