Fig. 4
From: The prevalence and the adding value of fetal MRI imaging in midline cerebral anomalies
A 32-year-old woman came to the feto-maternal unit at 34 weeks gestational age (GA) with hydrocephalus. Further ultrasound (US) neuroscan was limited due to the position of the foetus, and it showed hydrocephalus; additionally, the posterior fossa was small and inconspicuous (a). Foetal MRI was performed and showed hydrocephalic changes, cortical lissencephaly, (b) dilated retrocerebellar space associated with vermian and brain stem hypoplasia, with z-shape configuration of the brain stem (c, d). Confirmed to be Walker–Warburg syndrome