Fetal growth restriction and preeclampsia as endpoints of a spectrum from the viewpoint of placental histopathology

Despite several common histopathological characteristics, placental histopathological profile of PE with FGR, PE without FGR and FGR without PE have remarkable differences, indicating histological background of their distinguished prognosis. Inadequate vascular development and decidual vasculopathies are characteristic in PE, while the undercapillarization of placental villous tree and villitis of unknown etiology leading to placental damage are characteristic of FGR. The dynamic equilibrium of different entities determines global placental function, and manifestation of FGR and/or PE.