[Chorioangiomatosis: a rare etiology of nonimmune hydrops fetalis. Obstetric and pediatric implications for patient care].

Unlabelled: We report a case of chorioangiomatosis with hydrops fetalis as a complication.

Observation: Hydrops fetalis associated with fetal distress led to preterm birth at 33 GW. Resuscitation was needed at birth. A systematic histologic exam showed diffuse chorioangiomatosis. There was no congenital hemangioma.

Comments: We describe the features of chorioangiomatosis, a rare cause of nonimmune hydrops fetalis. Prenatal diagnosis of chorioangiomatosis before early recognition of severe maternal and fetal complications during pregnancy is infrequent, thus precluding early management of the pregnancy. Reports of associated chorioangioma and infantile hemangioma are frequent, illustrated with a recent pathophysiological hypothesis involving embolism of a placental angioblast as for the cause of congenital hemangioma. Investigations for associated cutaneous or visceral infantile hemangioma should be undertaken when chorioangioma is diagnosed.