title: Tetraventricular central neurocytoma: A rare presentation with imaging-pathologic correlation.
abstract: Central neurocytoma (CN) is a benign intraventricular neuronal tumor with a favorable prognosis. It accounts approximately 0.25-0.5% of intracranial tumors. In this report, we describe a very rare case of tetraventricular CN with imaging-pathologic correlation, and discuss their atypical features in a location together with treatment options. A 27-year-old man was admitted to the hospital with symptoms of progressive headaches of several months' duration. Magnetic resonance imaging of the brain revealed a well-circumscribed, lobulated intraventricular mass with numerous intratumoral cystlike areas. The mass was located in the enlarged lateral ventricles bilaterally extending to the third and the fourth ventricle. Surgical removal of the 4(th) ventricle component of the tumor was performed. Histomorphological and immunohistochemical findings of the tumor were consistent with CN. After pathological diagnosis, gamma knife surgery was performed. CN may present with atypical features in a location with a usual histopathological findings. To our knowledge, we described the third case of tetraventricular CN, which was partially treated with both surgical resection and radiosurgery.
authors.affiliation: Department of Neurosurgery, Bahçeşehir University School of Medicine, Goztepe Medical Park Hospital, Istanbul, Turkey.
authors.forename: Akin
authors.initials: A
authors.lastname: Akakin
authors.affiliation: Department of Neurosurgery, Bahçeşehir University School of Medicine, Goztepe Medical Park Hospital, Istanbul, Turkey.
authors.forename: Baran
authors.initials: B
authors.lastname: Yilmaz
authors.affiliation: Department of Radiology, Bahçeşehir University School of Medicine, Goztepe Medical Park Hospital, Istanbul, Turkey.
authors.forename: Mustafa Kemal
authors.initials: MK
authors.lastname: Demir
authors.affiliation: Department of Pathology, Bahçeşehir University School of Medicine, Goztepe Medical Park Hospital, Istanbul, Turkey.
authors.forename: Ozlem
authors.initials: O
authors.lastname: Yapicier
authors.affiliation: Department of Neurosurgery, Bahçeşehir University School of Medicine, Goztepe Medical Park Hospital, Istanbul, Turkey.
authors.forename: Zafer Orkun
authors.initials: ZO
authors.lastname: Toktas
authors.affiliation: Department of Neurosurgery, Bahçeşehir University School of Medicine, Goztepe Medical Park Hospital, Istanbul, Turkey.
authors.forename: Turker
authors.initials: T
authors.lastname: Kilic
keywords: Neurocytoma; radiosurgery; surgery; ventricle