Perinatal outcome of pregnancies complicated by placental chorioangioma: a systematic review and meta-analysis Danilo Buca 1 , Carlotta Iacovella 2 , Asma Khalil 3,4 , Giuseppe Rizzo 5,6 , Meeli Sirotkina 7,8 , Alexander Makatsariya 6 , Marco Liberati 1 , Claudia Silvi 1 , Ganesh Acharya 9,10,11 , Francesco D’Antonio 11,12 1: Department of Obstetrics and Gynecology, University of Chieti, Italy 2: Department of Gynecology and Obstetrics, Goethe-University, Frankfurt, Germany 3: Fetal Medicine Unit, Saint George’s University of London, London, United Kingdom 4: Vascular Biology Research Centre, Molecular and Clinical Sciences Research Institute, St George's University of London 5: Division of Maternal and Fetal Medicine, Ospedale Cristo Re, University of Rome Tor Vergata, Rome, Italy. 6: Department of Obstetrics and Gynecology The First I.M. Sechenov Moscow State Medical University, Moscow, Russia. 7: Section of Perinatal Pathology, Department of Pathology, Karolinska University Hospital Huddinge, Stockholm, Sweden. 8: Division of Pathology, Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden 9: Division of Obstetrics and Gynecology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden. 10: Center for Fetal Medicine, Karolinska University Hospital, Stockholm, Sweden. 11: Women´s Health and Perinatology Research Group, Department of Clinical Medicine, Faculty of Health Sciences, UiT-The Arctic University of Norway, Tromsø, Norway 12: Department of Obstetrics and Gynecology, University Hospital of Northern Norway, Tromsø, Norway Corresponding Author: Francesco D’Antonio, MD, PhD Department of Clinical Medicine Faculty of Health Sciences UiT - The Arctic University of Norway Hansine Hansens veg 18 9019 Tromsø, Norway [email protected] Short title: Outcome of placental chorionagioma Keywords: chorioangioma, placental tumors, prenatal diagnosis, fetal therapy This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1002/uog.20304 This article is protected by copyright. All rights reserved. Accepted Article