ABSTRACT
Introduction : Placental Neoplasms are classified in to two categories based on their origin: Trophoblastic and nontrophoblastic. Non trophoblastic tumors are common and benign ones include chorioangioma andteratoma. Chorioangioma of placenta is the commonest benign tumor of the placenta. It consists of abenign angioma arising from the chorionic tissue. It has been found to be associated with manyserious complications such as nonimmune hydrops, congenital abnormalities, hemolytic anemia,polyhydramnios, IUGR, and IUFD.Methods:A 21 years old pregnant female 2nd gravida with 32 weeks of gestation presented to Ob/Gydepartment at L.G. Hospital with complaints of abdominal distension for 2 weeks associated withlower abdominal pain for 2 days. She had a history of one full term normal delivery withoutsignificant peripartum events. General examination was unremarkable. P/A was grossly enlarged withFundal height more than gestational age, fetal heart rate was 144 /min. Per vaginal examinationrevealed 2 cm dilated and early effaced cervix with intact membrane. USG revealed a single live fetuswith 32 weeks of gestation and without structural malformations and hydrops AFI of 42 cmhyperechoic mass of 8.5 *6.5cm on placental surface, near cord insertion with hypervascularity,separate from placental tissue suggestive of placental chorioangioma. Estimated fetal weight was1.6kg. After a course of dexamethasone, therapeutic amniocentesis was done; She developed grosspolyhydramnios after 4 days of amniocentesis followed by spontaneous preterm normal labor anddelivered 1.7kg live baby without peripartum complications. Histopathological analysis of the massrevealed proliferation of capillary sized vascular channels with endothelial cells, hemorrhagic andfocal area of calcifications. The neonate was admitted to NICU and was discharged after a weekwithout complications.Conclusion :This case illustrates the prompt and accurate diagnosis of placental chorioangioma canhelp apply timely interventions improving patient outcome.