A pregnant woman was referred to our hospital due to fetal cardiomegaly. We recognised a dilated umbilical vein, which raised a suspicion of placental chorioangioma. A male neonate was delivered at 37 weeks of gestation. The cardiomegaly was gradually improved. Pathological examination identified five non-giant placental chorioangiomas. Multiple non-giant chorioangiomas may cause fetal complications despite the difficulty of prenatal diagnosis.
Keywords: Fetal cardiomegaly; cardiothoracic area ratio; dilated umbilical vein; extra-cardiac shunt; placental chorioangioma.