Fig. 1
From: The prevalence and the adding value of fetal MRI imaging in midline cerebral anomalies
A 20-year-old woman (gravida 1, para 0) at 18 weeks of gestation with an ultrasound (US) diagnosis of alobar holoprosencephaly. a 2D US demonstrated a small head, single ventricle, fused thalami, absent falx, and septum pellucidum; the findings were confirmed by MRI (b) at 20 weeks. 3D US (c) shows cyclops in the face, hypotelorism, and single nostril. Karyotype was offered but refused by the patient. The pregnancy was miscarried at 23 weeks