Neurológia pre prax 2/2022

Uncommon association of two anatomical variants of cerebral circulation: fetal-type posterior cerebral artery and Percheron artery as the cause of paramedian thalamomesencephalic stroke

Paramedian bilateral thalamic ischemia often leads to different clinical presentation, the differential diagnosis of which includes several possible causes. The major features are unconsciousness, hypersomnia, ocular and neuropsychiatric disorders. In addition to the clinical manifestations, neuroradiological findings can also lead to diagnosis. Thrombosis of so-called Percheron artery is presumed cause. In this case report we would like to present a patient with clinical and radiological diagnosis of bilateral paramedian thalamic stroke due to thrombosis of Percheron artery in coincidence with an anatomical vascular anomaly of the posterior cerebral artery origin.

Keywords: Percheron artery, thalamus, stroke