INTRODUCTION Progress in the therapeutic management of Wilms' tumors (WT) in children has resulted in the fact that presently, almost all children with stage I and favorable histology diseases have a chance for a cure. THE AIM OF THE STUDY The objective of the report is an analysis of therapeutic results in children with unilateral stage I Wilms' tumors depending on the extent of tumor resect...

Median ages at diagnosis were 36.5 and 42.5 mo for 1523 males and 1678 females with unilateral Wilms' tumor registered between October 1969 and December 1985; they were 23.5 mo and 30.5 mo for 100 males and 141 females with bilateral disease. The median age for multicentric, unilateral cases was intermediate between the bilateral and unicentric medians. Patients with hemihypertrophy in addition...

In this issue of Genes & Development, Urbach and colleagues (pp. 971-982) provide compelling data suggesting a role for LIN28 in the pathogenesis of a significant percentage of Wilms tumors. These data extend our insights in the genetics underlying Wilms tumor development and emphasize the importance of stemness and microRNA-mediated processes in the origins of these tumors.

Wilms tumor, or nephroblastoma, is the most common malignant tumor of the urinary tract in children, but is rarely found in adults. Here, we report the first case of a female patient with a Wilms tumor, diagnosed during pregnancy, who underwent radical nephrectomy and adjuvant chemotherapy before and after delivering a healthy child. Generally, treatment should follow the guidelines established...

1. Webber BL, Parham DM, Drake LG, et al. Renal tumors in childhood. Pathol Ann Part 1992;1:191–232. 2. Murphy WM, Beckwith JB, Farrow GM. Tumors of the kidney, bladder and related urinary structures. In: Murphy WM, Beckwith JB, Farrow GM, editors. Atlas of tumor pathology, series 3, fascicle 11. Washington D.C.: Armed Forces Institute of Pathology, 1994. 3. Beckwith JB. Pediatric neoplastic di...

The WT1 transcription factor regulates SRY expression during the initial steps of the sex determination process in humans, activating a gene cascade leading to testis differentiation. In addition to causing Wilms' tumor, mutations in WT1 are often responsible for urogenital defects in men, while SRY mutations are mainly related to 46,XY pure gonadal dysgenesis. In order to evaluate their role i...

Treatment of Wilms tumor has a high success rate, with some 85% of patients achieving long-term survival. However, late effects of treatment and management of relapse remain significant clinical problems. If accurate prognostic methods were available, effective risk-adapted therapies could be tailored to individual patients at diagnosis. Few molecular prognostic markers for Wilms tumor are curr...