extraventricular neurocytoma https://www.malacards.org/card/extraventricular_neurocytoma ONCOTREE:EVN GARD:0020727 ICDO:9506/1 extraventricular neurocytoma (WHO grade II) NCIT:C92555 MONDO:0016727 Orphanet:251927 DOID:0081314 EVN MEDGEN:457401 Extraventricular neurocytoma (EVN), a variant of central neurocytoma, is a rare neuronal neoplasm, composed of round cells with neuronal differentiation, which is located outside of the ventricular system, usually within the spinal cord or cerebral hemispheres and that manifests with headache, nausea, vomiting, complex partial seizures or focal neurological deficits. In some cases it may exhibit atypical features consistent with aggressive clinical behavior. SCTID:716787002 UMLS:C2985175 mixed neuronal-glial tumor