ArticleVascular health and risk management2025
Functional Compression of the Right Internal Carotid Artery by the Hyoid Bone in a Patient with Moyamoya Syndrome and Low Internal Carotid Artery Bifurcation: A Case Report.
Article in Vascular health and risk management, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Variations in the spatial relationship between the hyoid bone and the carotid arteries and their clinical significance.World journal of radiology · 2025Article
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5 authors.
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Abstract
Background: Functional compression of the internal carotid artery by hyoid bone is a rare but potentially serious condition that can lead to vascular complications, particularly when coexisting with intracranial vascular abnormalities. This case report describes a 48-year-old woman with acute cerebral ischemia due to a combination of functional right internal carotid artery compression by the hyoid bone, low carotid bifurcation, and coexisting Moyamoya syndrome. Case Report: In this article, we describe the clinical case of a 48-year-old woman who presented with sudden-onset weakness in her left arm. Imaging studies demonstrated acute ischemia in the territory supplied by the right middle cerebral artery. Further evaluation with computed tomography angiography revealed compression of the right internal carotid artery by the hyoid bone. However, additional imaging studies, including digital subtraction angiography and carotid Doppler ultrasound, did not reveal any signs of internal carotid artery stenosis. This suggested that the compression was functional, occurring only in specific positions of the head or arms. The patient was also newly diagnosed with Moyamoya syndrome, characterized by progressive stenosis of the intracranial vessels. Prompt recognition of these findings enabled timely management, including the initiation of antiplatelet therapy. Conclusion: In cases of acute brain ischemia, it is crucial to consider both intracranial and extracranial vascular conditions. This case report underscores the significance of identifying anatomical variations in the relationship between the hyoid bone and the internal carotid artery, as it can lead to arterial compression and potentially trigger acute ischemic strokes, especially in combination with Moyamoya syndrome. Understanding these anatomical nuances is essential for early diagnosis and appropriate management.
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