Prenatal diagnosis of right diaphragmatic eventration associated with fetal hydrops.

Congenital diaphragmatic eventration (CDE) is a rare diaphragmatic abnormality. Clinical manifestations of CDE may mimic congenital diaphragmatic hernia. Prenatal differential diagnosis of eventration is critical because postnatal managing and prognosis of these conditions vary significantly. Sonographic features of CDE involve presence of abdominal organs in the thorax, shift of cardiac axis and mediastinum. Non-immune hydrops fetalis (NIHF) has been previously reported to be associated with intrathoracic masses as well as CDE. In this report, we present a case of congenital right diaphragmatic eventration associated with NIHF.