title: Rosette-forming glioneuronal tumor of the fourth ventricle with bilateral olivary degeneration.
abstract: Rosette-forming glioneuronal tumor (RGNT) of the fourth ventricle has been recognized as a new type of glioneuronal tumor. RGNTs are typically located in the infratentorial midline with involvement of the fourth ventricle. They occasionally involve the aqueduct and/or vermis. RGNTs of unusual anatomical sites or those with unusual findings have been reported. The present case reports describe RGNT of the fourth ventricle with bilateral olivary degeneration. It is important to accumulate imaging findings and biological behaviors of RGNTs given the limited number of cases.
authors.affiliation: Department of Radiology, Ichinomiyanishi Hospital, 1 Kaimei-hira, Ichinomiya 494-0001, Japan. yfushimi@kuhp.kyoto-u.ac.jp
authors.forename: Yasutaka
authors.initials: Y
authors.lastname: Fushimi
authors.forename: Akihiro
authors.initials: A
authors.lastname: Miyasaki
authors.forename: Hideaki
authors.initials: H
authors.lastname: Taki
authors.forename: Kunihiro
authors.initials: K
authors.lastname: Aoyama
authors.forename: Junko
authors.initials: J
authors.lastname: Hirato
authors.forename: Mitsunori
authors.initials: M
authors.lastname: Kanagaki
authors.forename: Kaori
authors.initials: K
authors.lastname: Togashi
mesh_terms: D000328:Adult; D002551:Cerebral Ventricle Neoplasms / Q000175:diagnosis* / Q000276:immunology / Q000473:pathology / Q000601:surgery; D003399:Craniotomy; D003937:Diagnosis, Differential; D005260:Female; D020546:Fourth Ventricle / Q000473:pathology*; D018303:Ganglioglioma / Q000175:diagnosis* / Q000276:immunology / Q000473:pathology / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging; D009847:Olivary Nucleus / Q000473:pathology*; D012397:Rosette Formation; D014057:Tomography, X-Ray Computed