title: Ultrasound evaluation of the normal and abnormal fetal neural axis.
mesh_terms: D000757:Anencephaly / Q000175:diagnosis; D001921:Brain / Q000033:anatomy & histology / Q000196:embryology*; D004677:Encephalocele / Q000175:diagnosis; D005260:Female; D005333:Fetus / Q000033:anatomy & histology*; D006801:Humans; D006832:Hydranencephaly / Q000175:diagnosis; D008588:Meningocele / Q000175:diagnosis; D008831:Microcephaly / Q000175:diagnosis; D009436:Neural Tube Defects / Q000175:diagnosis*; D011247:Pregnancy; D011296:Prenatal Diagnosis; D016136:Spina Bifida Occulta / Q000175:diagnosis; D014463:Ultrasonography