Prenatal diagnosis of bilateral diaphragmatic hernia by fetal sonography

This report describes a case of prenatally diagnosed bilateral diaphragmatic hernia. At 22 weeks’ gestation, ultrasound revealed a cystic structure behind the fetus's heart on the axial image at the level of the cardiac four‐chamber view. This suggested a left‐sided congenital diaphragmatic hernia with herniation of the stomach into the left hemithorax. However, the left‐to‐right midline shift of the heart was minimal, which is not typical of left‐sided congenital diaphragmatic hernia. Throughout the 30th week of gestation, the right and left branches of the pulmonary artery were hypoplastic compared with the values in normal fetuses of the same gestational age. The presumptive diagnosis was bilateral congenital diaphragmatic hernia. A female newborn weighing 2900 g was delivered at 37 weeks’ gestation, and she died at 7 h of age. An autopsy revealed large defects on both sides of the diaphragm. In conclusion, prenatal diagnosis of bilateral diaphragmatic hernia is possible with fetal sonography.

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