RT Journal Article SR Electronic T1 Pseudo-Subarachnoid Hemorrhage: A Potential Imaging Pitfall Associated with Diffuse Cerebral Edema JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 254 OP 256 VO 24 IS 2 A1 Given, Curtis A. A1 Burdette, Jonathan H. A1 Elster, Allen D. A1 Williams, Daniel W. YR 2003 UL http://www.ajnr.org/content/24/2/254.abstract AB Summary: We report CT findings in seven patients with diffuse cerebral edema and increased attenuation in the basilar cisterns resembling subarachnoid hemorrhage. On the basis of autopsy (three cases) and lumbar puncture (four cases) findings, true subarachnoid hemorrhage was reasonably excluded. Pathophysiologic changes that occur with diffuse cerebral edema are explored, with proposed explanations for the appearance of a pseudo-subarachnoid hemorrhage.