DO_cancer_slim NCIthesaurus extraventricular neurocytoma DOID:0081314 NCI:C92555 A cerebral ventricle cancer that is characterized by the presence of neoplastic uniform, round cells with neuronal differentiation, that arises from the brain parenchyma. Unlike central neurocytoma, it does not involve the lateral ventricles. disease_ontology ICDO:9506/1 cerebral ventricle cancer