PKD2 and hereditary disease: Six (60%) had confirmed genetic disease out of which 4 had a pathogenic variant in SDCCAG8, DYNC2H1, NPHP 1, and CEP164 and 2 had likely pathogenic variant in PKHD1. Two had VUS in PKD1 and PKD2. In one child (case 1) the clinical diagnosis was reclassified from Bardet Biedl Syndrome to nephronophthisis 15.