Abnormalities of brain differentiation.
D001139:Arnold-Chiari Malformation / Q000150:complications / Q000473:pathology; D001921:Brain / Q000002:abnormalities*; D001927:Brain Diseases / Q000175:diagnosis; D006801:Humans; D006849:Hydrocephalus / Q000150:complications; D008591:Meningomyelocele / Q000150:complications; D011296:Prenatal Diagnosis