title: Aqueductal blood clot as a cause of acute hydrocephalus in subarachnoid hemorrhage.
abstract: We describe two patients with acute hydrocephalus, in whom CT scans did not show intraventricular hemorrhage unequivocally. Midline sagittal MR imaging revealed a blood clot plugging the aqueduct. MR imaging is useful for detecting sub-acute clots within the aqueduct and for differentiating them from other entities.
authors.affiliation: Department of Neurosurgery, Dokkyo University School of Medicine, Tochigi, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Yoshimoto
authors.forename: C
authors.initials: C
authors.lastname: Ochiai
authors.forename: K
authors.initials: K
authors.lastname: Kawamata
authors.forename: M
authors.initials: M
authors.lastname: Endo
authors.forename: M
authors.initials: M
authors.lastname: Nagai
mesh_terms: D002421:Caudate Nucleus / Q000473:pathology; D002535:Cerebral Aqueduct / Q000473:pathology*; D002552:Cerebral Ventricles / Q000473:pathology; D003937:Diagnosis, Differential; D006801:Humans; D006849:Hydrocephalus / Q000175:diagnosis*; D002542:Intracranial Embolism and Thrombosis / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009072:Moyamoya Disease / Q000175:diagnosis; D013345:Subarachnoid Hemorrhage / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed