title: Primary angiitis of the central nervous system and silent cortical hemorrhages.
abstract: Primary angiitis of the CNS is histopathologically characterized by ischemic lesions and small petechial hemorrhages. Unlike CT or conventional MR imaging, gradient-echo MR imaging depicts these chronic petechial hemorrhages. We herein report the case of biopsy-proved primary angiitis of the CNS in a 42-year-old man; whom gradient-echo MR imaging revealed multiple petechial hemorrhages in the cortical-subcortical brain regions. The identification of petechial hemorrhages by gradient-echo MR imaging promises to be a valuable surrogate marker supporting the diagnosis of primary angiitis of the CNS.
authors.affiliation: Department of Neurology, Hacettepe University Hospitals, Sihhiye 06100, Ankara, Turkey.
authors.forename: Hakan
authors.initials: H
authors.lastname: Ay
authors.forename: Gürdal
authors.initials: G
authors.lastname: Sahin
authors.forename: Işil
authors.initials: I
authors.lastname: Saatci
authors.forename: Figen
authors.initials: F
authors.lastname: Söylemezoğlu
authors.forename: Okay
authors.initials: O
authors.lastname: Saribaş
mesh_terms: D000328:Adult; D002540:Cerebral Cortex / Q000098:blood supply / Q000473:pathology; D002543:Cerebral Hemorrhage / Q000150:complications / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D020293:Vasculitis, Central Nervous System / Q000150:complications / Q000175:diagnosis* / Q000473:pathology