central nervous system benign neoplasm gangliocytoma true MESH:D005729 http://www.case.edu/EpSO.owl#Gangliocytoma disease_ontology NCI:C6934 DOID:2426 SNOMEDCT_US_2018_03_01:53801007 GARD:10638 https://www.ncbi.nlm.nih.gov/pubmed/21741275 A central nervous system benign neoplasm that has_material_basis_in mature neurons, and is classified by the absence of neoplastic glial cells.