Routine first-trimester antenatal scanning of an 11 to12 weeks gestation.
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A well circumscribed hypoechoic mass at the fetal surface of the placenta, adjacent to the cord insertion, bulging into the amniotic cavity. The mass has internal vascularity and adjacent feeding vessels.
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Possibility of chorioangioma of placenta was considered. An important differential is intramural/submucosal fibroid, however intraplacental location and internal vascularity with feeding vessel, favor the diagnosis of chorioangioma.