Dandy‐Walker syndrome diagnosed in utero by ultrasonography

Abstract

Fetal ultrasonography during evaluation of a pregnancy complicated by acute polyhydramnios suggested the presence of a Dandy-Walker cyst. At autopsy, the classic posterior fossa anomalies associated with that syndrome were present. In addition, the right vagus nerve was deformed by the cyst wall, suggesting that fetal dysphagia led to the polyhydramnios.