Abnormality of the cerebral ventricles Ventriculomegaly Dilated cerebral ventricle Dilated ventricles Large cerebral ventricles and cisternae HP:0002119 HP:0002447 An increase in size of the ventricular system of the brain. Dilated cerebral ventricles Cerebral ventricular dilatation Enlarged cerebral ventricles HP:0007071 Enlarged ventricles Ventricular dilatation human_phenotype Enlarged ventricular system UMLS:C3278923 HP:0005691