central nervous system organ benign neoplasm myxoid glioneuronal tumor https://www.malacards.org/card/myxoid_glioneuronal_tumor A central nervous system benign neoplasm that is characterized by a dinucleotide mutation at codon 385 of the PDGFR gene. It usually occurs in the septum pellucidum but has also been described in the corpus callosum and periventricular white matter of the lateral ventricle. It is composed of oligodendrocyte-like cells in a prominent myxoid stroma. MONDO:0858944 UMLS:C5555545 DOID:0081285 MEDGEN:1791986 NCIT:C179229