A case of placental mesenchymal dysplasia with one year follow-up.

Placental mesenchymal dysplasia (PMD) is a rare placental disease with unknown etiology. Because of the malformation of the placenta, the incidence of the obstetric complications and the poor perinatal outcomes are higher than usual. PMD usually accompanies with Beckwith-Wiedemann syndrome. In this article, the authors report a case of PMD with a live delivery in 35+5 gestational weeks. The phenotype of the neonate was normal. During the one-year follow-up, the development of the child was normal.