SURGICAL TACTICS IN THE TREATMENT OF MALIGNANT RENAL TUMORS IN CHILDHOOD

The authors report the treatment results of 89 children with renal tum ors (excluding carcinoma) seen from 1988 to 1992, 71 (79.8%) with favo rable-histology Wilms' tumor (survival 86%) and 18 (20.2%) with unfavo rable histology, including anaplastic nephroblastoma, clear-cell sarco ma, and rhabdoid tumor (survival 61%). Preoperative chemotherapy (ChT) was given to 46 patients (survival 84%); none was given to 43 with ei ther tumors in the Ist year of life, massive hematuria, or tumor growt h during ChT (survival 78%). There were 3 tumor ruptures in the latter group compared to 1 in the former group.