To investigate whether WNT11 variants could be found in additional patients with overlapping phenotypes, we performed Sanger sequencing of WNT11 coding and splice site regions (positions +/−20) of 39 cases with non-cystic renal dysplasia, 13 cases of severe renal hypoplasia, and one case of renal hypoplasia and heart defect. Here, WNT11 is linked to Cystic renal dysplasia.