Aqueductal blood clot as a cause of acute hydrocephalus in subarachnoid hemorrhage.
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.
Yoshimoto
Y
Y
Department of Neurosurgery, Dokkyo University School of Medicine, Tochigi, Japan.
Ochiai
C
C
Kawamata
K
K
Endo
M
M
Nagai
M
M
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