Pseudo-subarachnoid hemorrhage.

Abstract

The computed tomographic (CT) finding of pseudo-subarachnoid hemorrhage (SAH) mimics that of SAH. In brain swelling due to acute hypoxic anoxic encephalopathy, the increased attenuation in the basal cisterns and subarachnoid spaces on CT scans is a characteristic finding of acute SAH. 
DOI: 10.1016/j.ajem.2007.08.031

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