Ataç C.Ak A.K.Batum M.Arı S.Ovalı G.Y.Çelebisoy N.2024-07-222024-07-22202115901874http://akademikarsiv.cbu.edu.tr:4000/handle/123456789/13390Lesions affecting the body of the optic chiasm typically produce bitemporal hemianopia. The blood supply comes from the anterior communicating artery, anterior cerebral, posterior communicating, posterior cerebral, and basilar arteries. We herein report a young patient admitted to the emergency department with acute confusion, left-sided hemiparesis, hemihypoesthesia, and dysarthria. Bitemporal hemianopia was detected after resolution of confusion. On cranial magnetic resonance imaging (MRI), infarction in the right anterolateral thalamus in the territory of tuberothalamic artery (TA) and in posterior chiasma in the territory of the posterior communicating artery (PCoA) was revealed. Cerebral MR angiography showed luminal irregularity of the PCoA. The patient was presented to draw attention to the rare entity ischemic chiasmal syndrome. © 2020, Fondazione Società Italiana di Neurologia.EnglishBasilar ArteryCerebral AngiographyCerebral InfarctionCircle of WillisHumansMagnetic Resonance Imagingcholesteroltriacylglycerolvery low density lipoproteinacute confusionadultapparent diffusion coefficientArticlecase reportcholesterol blood levelclinical articlediffusion weighted imagingdisease associationdysarthriahemianopiahemiparesishumanhypesthesiainfarctionischemic chiasmal syndromemagnetic resonance angiographymalenuclear magnetic resonance imagingoptic chiasmposterior communicating arteryrare diseasesyndromethalamus lateral nucleustriacylglycerol blood leveltuberothalamic artery infarctionvisual field defectbasilar arterybrain angiographybrain circulus arteriosusbrain infarctionArticle10.1007/s10072-020-04906-4