A central nervous system neoplasm mostly occurring in the fourth ventricle region. It is characterized by the presence of neurocytes forming pseudorosettes and astrocytes which contain Rosenthal fibers. Cytologic atypia is minimal. The disease is rosette-forming glioneuronal tumor of fourth ventricule (MONDO_0016736). Also known as: DNT of the cerebellum, RGNT, dysembryoplastic neuroepithelial tumor of cerebellum, dysembryoplastic neuroepithelial tumour of cerebellum, rosette-forming glioneuronal tumor, rosette-forming glioneuronal tumour.