BILATERAL THALAMIC INFARCTIONS - A RARE PRESENTATION OF POSTERIOR CIRCULATION STROKEJournal: University Journal of Medicine and Medical Specialities (Vol.2, No. 7)
Publication Date: 2017-01-09
Authors : ANNE PRINCY;
Page : 173-176
Keywords : :Bilateral thalamic infarct; Percheron; P1 segment;
Bilateral thalamic infarctions are rare presentations of stroke, as a result of a complex combination of risk factors and a predisposing vessel distribution. Thalami and midbrain arterial supply arises from many perforating blood vessels with a complex distribution with many variations. One rare variation, named the artery of Percheron, is a solitary arterial trunk that arises from one of the proximal segments of a posterior cerebral artery and supplies the paramedian thalami and the rostral midbrain bilaterally. Occlusion of this artery results in bilateral thalamic and mesencephalic infarctions. We describe one patient with a presumed occlusion of the artery of Percheron.
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