title: Extravasation of contrast-enhanced blood into the subarachnoid space during computed tomography.
abstract: Four cases are described in which there was extravasation of contrast medium into the subarachnoid space at the time of enhanced CT. Three were being investigated for a previous subarachnoid haemorrhage which was due to an aneurysm in two and an angioma in one. The other patient had suffered a severe head injury.
mesh_terms: D000328:Adult; D000368:Aged; D002675:Child, Preschool; D003287:Contrast Media; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013345:Subarachnoid Hemorrhage / Q000000981:diagnostic imaging / Q000209:etiology* / Q000503:physiopathology; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media