IBIMA Publishing International Journal of Case Reports in Medicine http://www.ibimapublishing.com/journals/IJCRM/ijcrm.html Vol. 2015 (2015), Article ID 613512, 5 pages DOI: 10.5171/2015.613512 ______________ Cite this Article as: Serpil Aydogmus, Zeynep Seyhanli, Serenat Eris, Hüseyin Aydogmus, Seyran Ceri Yiğit and Sefa Kelekci (2015), “A Large Placental Chorioangioma Without An Adverse Perinatal Effect” International Journal of Case Reports in Medicine, Vol. 2015 (2015), Article ID 613512, DOI: 10.5171/2015.613512 Case Report A Large Placental Chorioangioma without an Adverse Perinatal Effect Serpil Aydogmus 1 , Zeynep Seyhanli 2 , Serenat Eris 3 , Hüseyin Aydogmus 4 , Seyran Ceri Yiğit 5 and Sefa Kelekci 6 1,2,3,4,6 Izmir Katip Celebi University Ataturk Training and Research Hospital, Department of Obstetrics and Gynecology, Izmır, Turkey 5 Izmir Katip Celebi University Ataturk Training and Research Hospital, Department of Pathology, Izmır,Turkey Correspondence should be addressed to: Serenat Eris; serenateris@hotmail.com Received date: 25 Mai 2014; Accepted date: 14 July 2014; Published date: 19 August 2015 Academic Editor: El Said Abdel-Hady Copyright © 2015. Serpil Aydogmus, Zeynep Seyhanli, Serenat Eris, Hüseyin Aydogmus, Seyran Ceri Yiğit and Sefa Kelekci . Distributed under Creative Commons CC-BY 4.0 Introduction Chorioangiomas are the most common benign tumors of placenta with reported prevalence of approximately 0.5% -1% (1). Large tumors are rare but those exceeding 5 cm in diameter may be associated with adverse effects on both mother and fetus which include intrauterine growth restriction, fetal anemia, thrombocytopenia, congestive heart failure, polyhydramnios, preterm labor, preeclampsia and sudden infant death (2- 7). The larger the size of the tumor the more is the chance of developing complications. However, it is not necessary that complications would always ensue. Here we present a case with a large asymptomatic placental chorioangioma that was found incidentally at term and led to a successful outcome. Despite the large size, it was not associated with the Abstract Chorioangiomas are the most common benign tumors of placenta with reported prevalence of approximately 0.5% -1%. Large tumors are rare but those exceeding 5 cm in diameter may be associated with adverse effects on both mother and fetus. The larger the size of the tumor the more is the chance of developing complications. However, it is not necessary that complications would always ensue. Here, we present a case with a large asymptomatic placental chorioangioma that was found incidentally at term and led to a successful outcome. Despite the large size, it was not associated with the maternal or fetal complications expected with a chorioangioma of that size. Keywords: placental chorangioma, placental tumor, fetal complication