RT Journal Article SR Electronic T1 Pseudotumor Cerebri: Brief Review of Clinical Syndrome and Imaging Findings JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology DO 10.3174/ajnr.A2404 A1 A.J. Degnan A1 L.M. Levy YR 2011 UL http://www.ajnr.org/content/early/2011/06/16/ajnr.A2404.abstract AB SUMMARY: PTC is a clinical entity of uncertain etiology characterized by intracranial hypertension. The syndrome classically manifests with headaches and visual changes in women with obesity. Traditionally, imaging ruled out secondary causes of elevated CSF pressure but now may reveal findings frequently seen in patients with PTC, including the following: flattening of the globe, an empty sella, an enlarged ONS, protrusion and enhancement of the optic nerve head, and increased tortuosity of the optic nerve. Novel imaging methods, including MR venography, have additionally identified sinovenous stenosis as a potential indicator of PTC.