[Epidemiological, clinical and urographic aspects on a historical sample of patients Wilms tumor]

While the benign renal tumors are exceptional at children, the malign tumors are relatively frequent and they represent the great majority of abdominal tumors on childhood age. In our country, the nephroblastoma is the second in the rate of frequency, after the lymphoma. The radiological investigations play an important role when establishing the diagnostic of Wilms tumor. Although the echography unquestionably offers a series of advantages, most of the authors agree that it can not substitute the intravenous radiography. We subscribe to this opinion, drawing the attention upon the importance of knowing the polymorf urographical aspects which could be determined by development of a Wilms tumor, offering the guarantee of a right interpretation.