“artery of Percheron”: a rare anatomic variant 1) in which a solitary arterial trunk arising from the proximal segment of one PCA supplies the paramedian thalami and rostral midbrain bilaterally
The artery of Percheron is a rare variant of the posterior cerebral circulation characterised by a solitary arterial trunk that supplies blood to the paramedian thalami and the rostral midbrain bilaterally.
The term is used to refer to a solitary arterial trunk that branches from one of the proximal segments of either posterior cerebral artery (PCA). It supplies blood to the paramedian thalami and the rostral midbrain bilaterally.
Percheron infarct: bilateral thalamic and mesencephalic infarctions; clinically patients are often obtunded, comatose, or agitated, with associated hemiplegia or hemisensory loss