renal tumours
Last edited 05/2019
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.