J Clin Oncol 19 (17): 3719 - 3724, 2001. doi: 10.1200/JCO.2001.19.17.3719 Prognosis for Wilms Tumor Prognosis for Wilms tumor depends on Histology (favorable or unfavorable) Stage at diagnosis Patient's age (older age is associated with a worse prognosis) Molecular findings (loss of heterozygosity at 1p, 11p15, and 16q, and 1q gain are associated with increased relapse) The outcome for children with Wilms tumor is excellent.