Bilateral paramedian thalamic and mesencephalic infarcts. From the original classification of arterial patterns at the origin of the paramedian arteries for the thalamus 1, this variant is described as type ii. Occlusion of the aop results in a characteristic pattern of ischemia. Files are available under licenses specified on their description page. The artery of percheron is a rare variant of the posterior cerebral circulation characterized by a solitary arterial trunk that supplies blood to the paramedian thalami and the rostral midbrain bilaterally. The percheron s artery is a vascular variant characterized by the presence of a dominant thalamicperforating artery originated in the p1 segment of the posterior cerebral artery. Artery of percheron territory infarct is rare, on account of the relative rarity of the artery of percheron, and presents with a variety of signs and symptoms collectively termed the paramedian thalamic syndrome. Percheron, heavy drafthorse breed that originated in the perche region of france.
The breed probably stems from the flemish great horse of the middle ages. The purpose of this study was to characterize the complete imaging spectrum of. As of 2009, the percheron horse association of america had horses registered in all 50 states, and had nearly 3,000 members, with around 2,500 new horses being registered annually. All structured data from the file and property namespaces is available under the creative commons cc0 license. The exact origins of the percheron have been lost over time. It is a type of posterior circulation infarction on imaging, it is classically characterized by bilateral infarcts in areas involving the rostral midbrain andor ventromedial thalamus. Author links open overlay panel ana laura kovac a luis alberto camputaro a juan cruz camino b gustavo. Some believe they are descendants of the original horses found in the region during the ice age, others that he is closely related to the boulonnais horse used in the roman invasion of brittany. Consequently, occlusion of the artery of percheron causes a bilateral paramedian thalamic infarction with or without midbrain infarction. Abstract the percherons artery is a vascular variant characterized by the presence of a dominant thalamicperforating artery originated in. Calcificaciones groseras degenerativas putaminales.
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