摘要: Primary cancers of the kidney are rare at any age. Although only a small proportion cases clearly inherited, genetic predisposition is most important aetiological factor thus far identified in this group tumours. The histological type tumour depends very much on age diagnosis; congenital mesoblastic nephroma common first 3 months life, followed by predominance Wilms (nephroblastoma) early childhood which overtaken renal cell carcinoma adult life. Kidney cancer extremely between ages 7 and 40 years (see Figure 7.1).