Artery of Percheron territory infarct due to bilateral carotid artery dissection: when anterior circulation supplies the posterior one
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To the Editor,
Multiple small vessels, originating from the posterior communicating artery (PcomA) and P1 and P2 segments of the posterior cerebral arteries (PCAs), predominatly supply the thalamus. The artery of Percheron (AOP), first described by Gérard Percheron in 1973, is a rare variant of the posterior cerebral circulation, where a solitary arterial trunk supplies blood to the paramedian thalami and rostral midbrain bilaterally . An ischemic stroke in the territory of an artery of Percheron usually presents with vertical gaze palsy, coma, and memory impairment.
The case of a 52-year-old man is reported. Patient’s clinical history was uneventful, although he was found in an unwitnessed comatose state, with an ischemic stroke in the AOP territory, due to a bilateral carotid artery dissection (CAD), with fetal origin of posterior cerebral arteries (f-PCA). History of a recent trauma or of a recurrent headache was negative, as well as the presence of vascular risk factors and...
1. Study concept: N. Morelli
2. Study design: N. Morelli, Eugenia Rota
3. Data analysis/interpretation: N. Morelli, E. Rota
4. Manuscript preparation and definition of intellectual content: N. Morelli, E. Rota
5. Manuscript editing: N. Morelli, E. Rota
6. Manuscript revision/review: M. Nolli, D. Guidetti, E. Michieletti
Compliance with ethical standards
Human and animal studies have been approved by local ethics committee and therefore been performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments. Specific national laws have been observed, too.
Informed consent (written) of the patient has been obtained.
All data of research materials related to this paper (for example data, samples, or models) can be accessed.
Conflict of interest
The authors declare that they have no conflict of interest.
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