The Double-Edged Sword: A Rare Case of Placental Chorioangioma

Abstract

Background: Placental chorioangiomas are uncommon benign tumors of the placenta that can have severe fetal consequences, especially when large. Complications include polyhydramnios, fetal anemia, and preterm labor. Case Presentation: A 24-year-old G3A2 woman presented at 23+5 weeks of gestation with pain abdomen. Ultrasound revealed a subamniotic hematoma and later, a large placental mass consistent with chorioangioma. Color Doppler demonstrated vascularity from the umbilical cord, with MCA-PSV >1.5 MoM suggestive of fetal anemia. At 32+3 weeks, the baby was delivered via cesarean section due to worsening polyhydramnios and fetal risk. Postnatal course was stable as there was no need for blood transfusion. Conclusion:
Early detection, fetal surveillance, and timely delivery are key to improving perinatal outcomes in cases of giant chorioangiomas.