title: Intraventricular mass lesions.
abstract: Determining the precise etiology of an intraventricular mass can be a difficult diagnostic problem. CT and angiographic findings were reviewed in a series of 73 patients who had intraventricular masses. The histologic diagnosis can be suggested preoperatively by an analysis of the frequency of lesions occurring at a given ventricular location, lesion density before and after administration of contrast material, age and sex of the patient, morphologic appearance of the mass, and presence or absence of hydrocephalus. Angiography is useful when meningioma, choroid plexus papilloma and carcinoma, or arteriovenous malformation are considered. The differential features of each diagnostic entity are discussed.
mesh_terms: D001927:Brain Diseases / Q000000981:diagnostic imaging*; D001932:Brain Neoplasms / Q000000981:diagnostic imaging*; D002533:Cerebral Angiography; D002552:Cerebral Ventricles; D014695:Cerebral Ventriculography; D002831:Choroid Plexus; D003397:Craniopharyngioma / Q000000981:diagnostic imaging; D003551:Cysticercosis / Q000000981:diagnostic imaging; D003884:Dermoid Cyst / Q000000981:diagnostic imaging; D004806:Ependymoma / Q000000981:diagnostic imaging; D004814:Epidermal Cyst / Q000000981:diagnostic imaging; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000000981:diagnostic imaging; D008527:Medulloblastoma / Q000000981:diagnostic imaging; D008577:Meningeal Neoplasms / Q000000981:diagnostic imaging; D008579:Meningioma / Q000000981:diagnostic imaging; D010212:Papilloma / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed