PKHD1 and polycystic kidney disease: The same two unreported mutations (c.3592_3628 + 45del, p? and c.11207 T > C, p.(Ile3736Thr)) in the fetal PKHD1 gene (NM_138694.4) were identified inherited from the parents in our study, where related phenotypes of two fetuses showed recurrent enlarged echogenic of polycystic kidney and oligoamnios.