Bilateral Wilms' tumors: a single-center experience with 19 cases

Appropriate chemotherapy and conservative nephron-sparing and innovative surgery can achieve good results with preservation of adequate renal function in nearly all cases. Nephroblastomatosis was an almost universal finding and requires close monitoring because Wilms' tumors developed in residual suspect areas. Revision surgery was effective. Unfavorable histology did not have a reduced survival in our series. Metastatic spread outside the kidney had a poor prognosis.