title: Leptomeningeal Dissemination of Intraventricular Rhabdoid Meningioma: Imaging Findings.
abstract: A 20-year-old male patient was admitted to our clinic with a 1-year history of headache. The patient's systemic-neurological examination and laboratory findings were normal. Computed tomography and magnetic resonance imaging were performed. Imaging findings showed calcified intraventricular mass and subependymal and gyral nodular lesions. There was a slight increase in ventricular volume. Surgical treatment was performed. Pathological specimens revealed the diagnosis of rhabdoid meningioma. Leptomeningeal dissemination refers to diffuse seeding of the leptomeninges by tumor metastases. To our knowledge, leptomeningeal dissemination of intraventricular rhabdoid meningioma is very rare in the literature. We aimed to discuss imaging findings and differential diagnosis of leptomeningeal dissemination of rhabdoid meningioma.
authors.affiliation: Ataturk University Medical School, Department of Radiology, Erzurum, Turkey.
authors.forename: Ihsan
authors.initials: I
authors.lastname: Yuce
authors.forename: Suat
authors.initials: S
authors.lastname: Eren
authors.forename: Akin
authors.initials: A
authors.lastname: Levent
authors.forename: Mecit
authors.initials: M
authors.lastname: Kantarci
authors.forename: Ali
authors.initials: A
authors.lastname: Kurt
authors.forename: Onder Hilmi
authors.initials: OH
authors.lastname: Okay
mesh_terms: D002551:Cerebral Ventricle Neoplasms / Q000150:complications / Q000473:pathology / Q000601:surgery; D018450:Disease Progression; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008577:Meningeal Neoplasms / Q000473:pathology / Q000556:secondary* / Q000601:surgery; D008579:Meningioma / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D018335:Rhabdoid Tumor / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D014057:Tomography, X-Ray Computed; D055815:Young Adult