WT1 and Wilms tumor: Additionally, the occurrence of Wilms’ tumor, as reported by Lipska et al. and Lehnhardt et al., may precede SRNS by up to 4 years, but as the first observed manifestation of a pathogenic variant in the WT1 gene, it may precede the development of SRNS by up to 10 years after the completion of oncological treatment [3,21].