Journal of Ultrasound in Medicine, Vol 13, Issue 11 883-886, Copyright © 1994 by American Institute of Ultrasound in Medicine
Solid masses on the fetal surface of the placenta: differential diagnosis and clinical outcome
B. Bromley and B. R. Benacerraf
Department of Obstetric and Gynecology, Massachusetts General Hospital, Brigham & Women's Hospital, Boston, MA.
We identified 10 cases of solid masses on the fetal surface of the placenta
prospectively that were thought to represent chorioangiomas. Pathologic
assessment of the placenta revealed five chorioangiomas and five placental
hemorrhages. The five chorioangiomas ranged in size from 4 to 10 cm and
four of these five fetuses were delivered uneventfully at term. Only one
fetus showed evidence of cardiac decompensation and did not survive. Three
of the five women with placental bleeds delivered their infants between 33
and 34 weeks' gestation, but all five infants did well. This series shows
that the sonographic appearance of chorioangioma was indistinguishable from
placental hemorrhage, and even large chorioangiomas may be associated with
good neonatal outcome.