Abstract
Introduction: Chorioangiomas are benign, nontrophoblastic tumors of the placenta. Giant chorioangiomas (larger 5 cm) are infrequent and have unfavorable outcomes due to their strong association with maternal and fetal complications. We describe a case of a giant chorioangioma that had a good outcome without complications. Case report: A 27-year-old woman, primipara, with a regularly monitored pregnancy was admitted to the hospital at 37 + 5 weeks of gestation due to pain in the lower half of the abdomen, rupture of the amniotic sac and accumulation of thick, green, amniotic fluid. Ultrasonography performed at 33 weeks of gestation indicated the presence of a tumor mass 12.5 × 7.7 cm in diameter that was localized near the chorionic surface. Cardiotocography indicated variable decelerations, which necessitated an emergency cesarean section. A live, healthy, male child was born without complications via Dorfler’s cesarean section. The encapsulated tumor mass was manually removed from the uterus, and angiomatous chorioangioma of the placenta was diagnosed by pathohistological examination. Conclusion: Ultrasonographic monitoring is the choice method for the accurate diagnosis and intervention of chorioangioma, but only pathohistological examination can confirm the diagnosis. This case report demonstrates that giant placental chorioangioma may have a favorable outcome without any medical intervention.
Highlights
Chorioangiomas are benign, nontrophoblastic tumors of the placenta
Placental tissue with a diameter of 17 × 13 × 4 cm, a paracentral insertion of the umbilical cord 30 cm in length, and a separative irregular tumor mass 14 × 9 × 10 cm in size was submitted for pathohistological analysis
Complications that occur in the mother include polyhydramnios, which can cause premature uterine contractions, cervical insufficiency, premature birth, placental abruption, malpresentation, increased risk of cesarean section and postpartum hemorrhage [16]
Summary
Chorioangiomas are the most common primary tumors of the placenta and are of nontrophoblastic origin, with benign biological behavior similar to that of other tumors of identical histogenesis [1]. Their pathogenesis is not clear, these tumors can arise from any part of the placenta except trophoblastic tissue [2,3,4]. This condition is called angiomyxoma or vascular hamartoma of the placenta. Using ultrasound and color Doppler, these tumors can be diagnosed during pregnancy [13], and the pregnancy must be monitored regularly
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