Kidney cancer

A cancerous tumour of the kidney. Most kidney cancers originate in the kidney itself, but in rare cases cancer spreads to the kidney from another organ. There are 3 main types of kidney cancer. The most common, renal cell carcinoma, usually occurs in people over 40. Nephroblastoma (also called Wilms’ tumour) is a fast-growing tumour that mainly affects children under 5. Transitional cell carcinoma arises from cells lining the renal pelvis; it is more common in smokers or those who have taken analgesic drugs for a long time. Symptoms of kidney cancer vary. It is often symptomless in the early stages, although later there may be blood in the urine. All types require surgical removal of the kidney and sometimes also of the ureter. For nephroblastoma, surgery is followed by treatment with anticancer drugs. Kidney cancer is likely to be fatal if it has spread to other organs before treatment is started.