title: Choroid plexus of the fourth ventricle: a useful CT landmark.
abstract: The choroid plexus of the fourth ventricle is a sensitive, symmetrical CT landmark which can often be visualized in overlapped scans performed in the orbital plane during rapid infusion of a high dose of iodinated contrast substance. Normal and pertinent abnormal plexus configurations are described and illustrated.
mesh_terms: D001927:Brain Diseases / Q000000981:diagnostic imaging / Q000209:etiology; D001932:Brain Neoplasms / Q000150:complications / Q000000981:diagnostic imaging; D002552:Cerebral Ventricles / Q000033:anatomy & histology; D014695:Cerebral Ventriculography; D002831:Choroid Plexus / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D003287:Contrast Media / Q000008:administration & dosage; D005910:Glioma / Q000150:complications / Q000000981:diagnostic imaging; D006801:Humans; D008526:Medulla Oblongata / Q000000981:diagnostic imaging; D008577:Meningeal Neoplasms / Q000150:complications / Q000000981:diagnostic imaging; D008579:Meningioma / Q000150:complications / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media