A Case of mesenchymal dysplasia of the placenta.

Kim, Yeun Hee; Jung, Dae Young; Lee, Young; Park, In Yang; Ahn, Hyun Young; Ko, Hyun Sun; Park, Gyeung Shin; Shin, Jong Chul

Case Report

Korean Journal of Obstetrics & Gynecology 2006;49(2):436-442.
Published online February 1, 2006.

A Case of mesenchymal dysplasia of the placenta.

Yeun Hee Kim, Dae Young Jung, Young Lee, In Yang Park, Hyun Young Ahn, Hyun Sun Ko, Gyeung Shin Park, Jong Chul Shin

¹Department of Obstetrics and Gynecology, College of Medicine Catholic University of Korea. jcshin@catholic.ac.kr
²Department of Clinical Pathology, College of Medicine Catholic University of Korea.

Abstract

Placental mesenchymal dysplasia is a rare condition of pregnancy that present as macroscopic feature of molar change in the placenta and normal karyotype fetus, and has been reported at birth in 15 cases of Beckwith-Wiedmann syndrome and 25 cases of normal fetus in literatures. It may mimic the partial hydatidiform mole, but the mesenchymal dysplasia is different that it may be compatible with a normal fetus. A nulliparous woman was suspected to be a partial mole with a coexistent live fetus in gestational age of 14 weeks because of the partially cystic placenta on ultrasonography examination. She delivered a healthy female vaginally at 36+6 weeks of gestation and the histological examination of placenta established the diagnosis of mesenchymal stem villous dysplasia. We report here an unusual pregnancy.

Key Words: Mesenchymal dysplasia, Partial mole, Placenta