[An unusual etiology of hydramnios: prenatal cerebral vascular accident. Five cases].

Neurological anomalies of the fetus are classically reported as causes of hydramnios, but cerebral vascular events occurring in utero in the fetus are rarely mentioned. We observed five newborns with neurological complications during the neonatal period in which anomalies of cerebral vascularization were identified antenatally. The mothers had hydramnios during pregnancy. Several pathophysiological hypotheses have been proposed to explain the mechanism of hydramnios. Magnetic resonance imaging of the brain in the fetus has made it possible to identify such exceptional events with extremely poor prognosis and major sequelae.