Radıologıcal Features of Placental Mesenchymal Dysplasıa

Introduction: Placental mesenchymal dysplasia (PMD) is an uncommon disorder of the placenta, characterised by placentomegaly with diffuse hydropic stem villous, aneurysmally dilated vessels and lack of trophoblastic proliferation. its diagnosis can be confused with mole.Initial ultrasound and MRI are very important for radiological diagnosis. definitive diagnosis is made by postterm biopsy. Case: A 33-year-old woman was admitted in her second pregnancy (first twin pregnancy) at 21 weeks' station in rutine control. There is a lesion that protrudes towards the uterine cavity, in the anterior part of the uterus corpus on ultrasound. MRI was performed same day for differential diagnosis. The mass was reporrted as placental mesenchymal dysplasia. Discussion: PMD is a rare benign condition. The fetus with PMD can develop normally without severe maternal complications. It is important to distinguish PMD from a partial mole. Initial ultrasound and MRI are very important for radiological diagnosis. definitive diagnosis is made by postterm biopsy