Bilateral Superior Cerebellar Artery Embolic Occlusion with a Fetal-Type Posterior Cerebral Artery Providing Collateral Circulation

Bilateral infarction of the superior cerebellar arteries with sparing of the rest of the posterior circulation, particularly the posterior cerebral arteries, is an uncommon finding in neurological practice. Most commonly, the deficits of the superior cerebellar arteries and posterior cerebral arteri...

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Main Authors: Taylor J. Bergman, Rachael C. Saporito, Thomas Hope
Format: Article
Language:English
Published: Karger Publishers 2016-12-01
Series:Case Reports in Neurology
Subjects:
Online Access:http://www.karger.com/Article/FullText/452942
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spelling doaj-0994ae67897440e3901c1237406d11512020-11-24T23:52:55ZengKarger PublishersCase Reports in Neurology1662-680X2016-12-018325826310.1159/000452942452942Bilateral Superior Cerebellar Artery Embolic Occlusion with a Fetal-Type Posterior Cerebral Artery Providing Collateral CirculationTaylor J. BergmanRachael C. SaporitoThomas HopeBilateral infarction of the superior cerebellar arteries with sparing of the rest of the posterior circulation, particularly the posterior cerebral arteries, is an uncommon finding in neurological practice. Most commonly, the deficits of the superior cerebellar arteries and posterior cerebral arteries occur together due to the close proximity of their origins at the top of the basilar artery. A patient was transferred to the neurological intensive care unit with a history of recent-onset falls from standing, profound hypertension, dizziness, and headaches. The neurological exam revealed cerebellar signs, including dysmetria of the right upper extremity and a decreased level of consciousness. Computed tomography of the head and neck revealed decreased attenuation throughout most of the cerebellar hemispheres suggestive of ischemic injury with sparing of the rest of the brain. Further investigation with a computed tomography angiogram revealed a fetal-type posterior cerebral artery on the right side that was providing collateral circulation to the posterior brain. Due to this embryological anomaly, the patient was spared significant morbidity and mortality that would have likely occurred had the circulation been more typical of an adult male.http://www.karger.com/Article/FullText/452942Superior cerebellar arteryEmbolic occlusionCollateral circulationCardioembolic strokeFetal-type posterior cerebral artery
collection DOAJ
language English
format Article
sources DOAJ
author Taylor J. Bergman
Rachael C. Saporito
Thomas Hope
spellingShingle Taylor J. Bergman
Rachael C. Saporito
Thomas Hope
Bilateral Superior Cerebellar Artery Embolic Occlusion with a Fetal-Type Posterior Cerebral Artery Providing Collateral Circulation
Case Reports in Neurology
Superior cerebellar artery
Embolic occlusion
Collateral circulation
Cardioembolic stroke
Fetal-type posterior cerebral artery
author_facet Taylor J. Bergman
Rachael C. Saporito
Thomas Hope
author_sort Taylor J. Bergman
title Bilateral Superior Cerebellar Artery Embolic Occlusion with a Fetal-Type Posterior Cerebral Artery Providing Collateral Circulation
title_short Bilateral Superior Cerebellar Artery Embolic Occlusion with a Fetal-Type Posterior Cerebral Artery Providing Collateral Circulation
title_full Bilateral Superior Cerebellar Artery Embolic Occlusion with a Fetal-Type Posterior Cerebral Artery Providing Collateral Circulation
title_fullStr Bilateral Superior Cerebellar Artery Embolic Occlusion with a Fetal-Type Posterior Cerebral Artery Providing Collateral Circulation
title_full_unstemmed Bilateral Superior Cerebellar Artery Embolic Occlusion with a Fetal-Type Posterior Cerebral Artery Providing Collateral Circulation
title_sort bilateral superior cerebellar artery embolic occlusion with a fetal-type posterior cerebral artery providing collateral circulation
publisher Karger Publishers
series Case Reports in Neurology
issn 1662-680X
publishDate 2016-12-01
description Bilateral infarction of the superior cerebellar arteries with sparing of the rest of the posterior circulation, particularly the posterior cerebral arteries, is an uncommon finding in neurological practice. Most commonly, the deficits of the superior cerebellar arteries and posterior cerebral arteries occur together due to the close proximity of their origins at the top of the basilar artery. A patient was transferred to the neurological intensive care unit with a history of recent-onset falls from standing, profound hypertension, dizziness, and headaches. The neurological exam revealed cerebellar signs, including dysmetria of the right upper extremity and a decreased level of consciousness. Computed tomography of the head and neck revealed decreased attenuation throughout most of the cerebellar hemispheres suggestive of ischemic injury with sparing of the rest of the brain. Further investigation with a computed tomography angiogram revealed a fetal-type posterior cerebral artery on the right side that was providing collateral circulation to the posterior brain. Due to this embryological anomaly, the patient was spared significant morbidity and mortality that would have likely occurred had the circulation been more typical of an adult male.
topic Superior cerebellar artery
Embolic occlusion
Collateral circulation
Cardioembolic stroke
Fetal-type posterior cerebral artery
url http://www.karger.com/Article/FullText/452942
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