2018
DOI: 10.1016/j.radcr.2018.04.017
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Bilateral hyperdense middle cerebral arteries: Stroke sign or not?

Abstract: Hyperdense middle cerebral artery (MCA) is a classic sign of acute thromboembolic disease. Simultaneous bilateral occurrence is uncommon and traditionally attributed to physiological hemoconcentration or attributable to imaging artifact. We present the case of a 71-year-old man whose admission noncontrast computed tomography (CT) demonstrated bilateral hyperdense middle cerebral arteries without other radiographic evidence of acute stroke. CT angiography confirmed bilateral MCA, M1 segment vascular occlusion a… Show more

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Cited by 4 publications
(3 citation statements)
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References 9 publications
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“…Si bien existe la posibilidad de presentar el signo de manera bilateral en casos severos de EVCi bilateral, esta opción es anecdótica (15) . Lo más frecuente es que sea bilateral por policitemia, o en otras condiciones tales como la ingesta de cocaína, encefalitis herpética, contusiones, o esclerosis de vasos intracraneales (10,16) .…”
Section: Discussionunclassified
“…Si bien existe la posibilidad de presentar el signo de manera bilateral en casos severos de EVCi bilateral, esta opción es anecdótica (15) . Lo más frecuente es que sea bilateral por policitemia, o en otras condiciones tales como la ingesta de cocaína, encefalitis herpética, contusiones, o esclerosis de vasos intracraneales (10,16) .…”
Section: Discussionunclassified
“…Acute bilateral occlusion of both MCAs is exceptionally rare, usually in the setting of cardiac disease such as atrial fibrillation [2,15]. Without early intervention, this condition results in poor outcomes, including bilateral paresis, coma, and death [3][4][5][6]. The mainstay of treatment for AIS secondary to an occlusion of the internal carotid artery or the proximal MCAs is mechanical thrombectomy as long as the patient presents within six to 24 hours since the patient was last known to be well [16].…”
Section: Discussionmentioning
confidence: 99%
“…Therefore, bilateral occlusion of the middle cerebral artery (MCA) is an extremely rare pathology that often results in poor outcomes. More specifically, patients can present with diffuse cerebral edema, brain herniation, decerebrate posturing, and death [3][4][5][6]. The treatment for such a case is often mechanical thrombectomy, given that the patient presents within six to 24 hours [7][8][9][10].…”
Section: Introductionmentioning
confidence: 99%