title: Superficial siderosis of the central nervous system: neuroradiological evaluation of two cases.
abstract: We present 2 cases of superficial siderosis of the central nervous system secondary to chronic subarachnoid bleeding. The diagnosis was made with MR and cerebrospinal fluid (CSF) examination. MR showed, in T2-weighted images, superficial hypointensity of the cervical cord, brainstem, cerebellum, and basal cisterns due to hemosiderin deposits. CSF was xanthochromic, with increased protein content. In 1 of the 2 cases also the CT examination was positive, showing a hyperdense rim around the brainstem. A complete neuroradiological evaluation (MR, CT, angiography and myelography) did not permit to detect the source of the bleeding.
authors.affiliation: Department of Neuroradiology, University of Turin, Italy.
authors.forename: D
authors.initials: D
authors.lastname: Daniele
authors.forename: M
authors.initials: M
authors.lastname: Bracchi
authors.forename: A
authors.initials: A
authors.lastname: Riva
authors.forename: S
authors.initials: S
authors.lastname: Duca
authors.forename: G
authors.initials: G
authors.lastname: Stura
authors.forename: G B
authors.initials: GB
authors.lastname: Bradac
mesh_terms: D002493:Central Nervous System Diseases / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D012806:Siderosis / Q000000981:diagnostic imaging* / Q000473:pathology; D014057:Tomography, X-Ray Computed