Vol 91, No 12 (2020)
Clinical vignette
Published online: 2020-11-24

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Placental mesenchymal dysplasia and hepatic cyst

Anna Rosner-Tenerowicz1, Michal Pomorski1, Tomasz Fuchs1, Jakub Sliwa1, Aleksandra Zimmer-Stelmach1, Wiktor Bek1, Mariusz Zimmer1
Pubmed: 33448000
Ginekol Pol 2020;91(12):779-780.

Abstract

Placental mesenchymal dysplasia (PMD) is a rare benign vascular anomaly of the placenta. It can be misdiagnosed as
a molar pregnancy resulting in unnecessary termination of pregnancy.
A 30-year-old woman was referred to our hospital at 18 gestational weeks due to suspicion of molar pregnancy. The ultrasound
showed a bulky placenta with multiple cysts. Oligohydramnion and fetal hypoechogenic cystic area without doppler flow
were diagnosed at 23 weeks. The baby was operated on after delivery, and an 80 mm multifocal cyst originating from the right
lobe of the liver was removed. The placenta demonstrated swelling stem villi with enlarged vessels and increased interstitial
cells without trophoblast proliferation. PMD and fetal hepatic cyst can coexist; however, the relationship between those
conditions remains to be elucidated. PMD is associated with adverse pregnancy outcomes but also with a good prognosis.

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