Atresia and stenosis of the aqueduct of Sylvius with comments on the Arnold-Chiari complex.
D001139:Arnold-Chiari Malformation; D001927:Brain Diseases; D002535:Cerebral Aqueduct; D002552:Cerebral Ventricles / Q000002:abnormalities*; D003251:Constriction, Pathologic; D005315:Fetal Diseases; D006801:Humans
ARNOLD-CHIARI MALFORMATION; CEREBRAL VENTRICLES/abnormalities