[Nephroblastoma and Wilms' tumor in hemihypertrophy. Presentation and discussion of a case].

The authors describe the case of a young girl with hemihypertrophy who developed a Wilms tumour in a kidney affected by nephroblastomatosis. The history and clinical findings are presented together with the histological results. The relationship between the congenital abnormality (hemihypertrophy), the dysgenesis (nephroblastomatosis) and the tumour is discussed.