title: Malignant meningioma within the third ventricle: a case report.
abstract: A case of a malignant meningioma within the 3rd ventricle is presented. Although malignant transformation of meningiomas has been described, occurrence within the ventricular system is extremely rare.
mesh_terms: D002551:Cerebral Ventricle Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D006801:Humans; D008297:Male; D008579:Meningioma / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D008875:Middle Aged; D014057:Tomography, X-Ray Computed