Infarction of Percheron artery: A rare case report

Abstract

The thalamus has strategic cores, which are divided into different functional classes and manage important cortical functions in harmony with each other. The mechanism proposed in the bilateral paramedian thalamic infarction is an occlusion of a single undifferentiated thalamo-perforating artery which is an anatomic variant. This artery, called the Percheron artery, appears from the first segment of the posterior cerebral artery and gives bilateral medial thalamic perforating branches. Bilateral paramedian thalamic infarction causes specific clinical signs and symptoms such as changes in consciousness ranging from letarj to coma, vertical gaze paralysis, ocular congestion loss and amnesia. In this case we aimed to present clinical and radiological features of a rare condition with infarction of percheron artery.

Keywords

• Percheron artery,Infarct,Magnetic resonance imaging

Percheron arter enfarktı: Nadir görülen bir olgu sunumu

Öz

Talamus farklı işlevsel sınıflara ayrılan ve önemli kortikal işlevleri birbiri ile uyum içerisinde yöneten stratejik çekirdeklere sahiptir. Bilateral paramedian talamik infarktta öne sürülen mekanizma bir anatomik varyant olan, santral ayrışmamış tek bir talamo-perforan arterin oklüzyonudur. Percheron arteri olarak isimlendirilen bu arter posterior serebral arterin ilk segmentinden çıkar ve bilateral medial talamik perforan dalları verir. Bilateral paramedian talamik infarkt letarjiden komaya kadar değişen bilinç değişiklikleri, vertikal bakış paralizileri, oküler konverjans kaybı ve amnezi ile karakterli spesifik klinik belirti ve bulgulara neden olur. Bu vakada, nadir görülen bir durum olan percheron arter enfarktının klinik ve radyolojik özelliklerini sunmayı amaçladık.

Anahtar Kelimeler

• Percheron arter,İnfarkt,Manyetik rezonans görüntüleme

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