Kidney cancer refers to cancer that starts in the kidney and cancer occurs when there is uncontrolled growth of cells. Renal cell carcinoma (RCC) is the most common type of kidney cancer, accounting for 9 in 10 cases.
There are several subtypes of RCC such as clear cell RCC, non-clear cell RCC. Clear cell RCC is the commonest type of RCC accounting for 7 in 10. Non-clear cell RCC includes a group of less common types of RCC such as papillary, chromophobe and collecting duct for example.
Other types of kidney cancer include Transitional cell carcinoma (TCC) which can arise from cells that line the renal pelvis. Apart from RCC and TCC, there are also rare kidney cancers such as Wilms tumour in children and renal sarcoma. There are also benign (non-cancerous) kidney cancers including angiomyolipoma and oncocytoma.
This article will be focussing on clear cell RCC.