title: CYSTIC PROLONGATION OF FOURTH VENTRICLE. AN ANOMALY ASSOCIATED WITH THE ARNOLD-CHIARI MALFORMATION.
mesh_terms: D001139:Arnold-Chiari Malformation; D001927:Brain Diseases; D002552:Cerebral Ventricles; D003560:Cysts; D020546:Fourth Ventricle; D006801:Humans; D010336:Pathology
keywords: ARNOLD-CHIARI DEFORMITY; BRAIN DISEASES; CEREBRAL VENTRICLES; CYSTS; PATHOLOGY