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Kidney cancer

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

Tumours of the kidney may arise from the renal parenchyma or from the urothelial lining of the collecting system. They account for about 3% of all malignancies.

The most important renal parenchymal tumours are:

  • renal adenocarcinoma:
    • 90% of all primary renal tumours
    • confined to adults

  • nephroblastoma:
    • 3% of all primary renal tumours
    • presents in infancy or early childhood

  • metastases:
    • most common renal tumour
    • often asymptomatic

Transitional cell carcinoma is the only important tumour of the renal pelvis. It accounts for 5% of all primary renal tumours, and often presents late. It is discussed with other urothelial tumours.

Angiomyolipoma is an important benign tumour.


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