[Nephroblastoma and Wilms tumor: report of 2 cases]

Nephroblastomatosis is a rare disease, considered to be a precursor of Wilms tumour. When it is isolated, recommended treatment consists of chemotherapy followed by surveillance. In the presence of associated Wilms tumour, treatment consists of preoperative chemotherapy followed by partial nephrectomy (when possible), followed by postoperative chemotherapy and surveillance.