Síndrome de Percheron. A propósito de dos casos clínicosPalabras clave ▻ Síndrome de Percheron ▻ Infarto bitalámico simultáneo ▻ Arteria de Percheron Keywords ▻ Percheron syndrome ▻ Simultaneous thalamic infarction ▻ Percheron artery ResumenEl infarto bitalámico simultáneo es una presentación isquémica infrecuente. La arteria de Percheron, presente en un tercio de la población, vasculariza la región paramediana de ambos tálamos y mesencéfalo rostral. El diagnóstico es dificultoso, por lo que reconocer esta variante anatómica es importante, siendo su afectación la causa más frecuente de infartos bitalámicos. La resonancia nuclear magnética juega un papel fundamental en el diagnóstico. El tratamiento dependerá de la etiología subyacente. Se describen dos casos clínicos, con hipersomnia como síntoma común, en los que se llega al diagnóstico de infarto bitalámico secundario al compromiso de la arteria de Percheron. AbstractBilateral thalamic stroke is an infrequent ischemic presentation. The Percheron artery, present in a third of the population, vascularizes the paramedian region of both thalamus and rostral mesencephalon. The diagnosis is difficult, so recognizing this anatomical variant is important, being its affectation the most frequent cause of bilateral thalamic infarcts. Nuclear magnetic resonance plays a fundamental role in the diagnosis. The treatment will depend on the underlying etiology. Two clinical cases are described, with hypersomnia as a common symptom, in which the diagnosis of simultaneous thalamic infarction secondary to Percheron artery compromise is reached.
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