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Hyoid bone compression‑induced carotid dissecting aneurysm: A case report

Qing Ye1, Ying Liu2, Hui Tang1

  • 1Department of Neurology, The Affiliated Hospital of Southwest Jiaotong University and The Third People's Hospital of Chengdu, Chengdu, Sichuan 610010, P.R. China.

Experimental and Therapeutic Medicine
|November 6, 2023
PubMed

Insights

Elongated hyoid bone can cause carotid artery dissection, leading to stroke. This case highlights the importance of considering bony structures near the carotid artery for preventing neurological events.

Area of Science:

  • Vascular Surgery
  • Neurology
  • Anatomy

Background:

  • Bony anatomical variations near the carotid artery, including the styloid process and hyoid bone, are implicated in carotid artery pathologies.
  • These pathologies include dissection, compression, and plaque formation/rupture, potentially leading to cerebrovascular events.

Observation:

  • A case study of an 80-year-old male presenting with acute ischemic stroke symptoms despite ongoing antiplatelet and statin therapy.
  • Imaging revealed acute infarction and a dissecting aneurysm at the right internal carotid artery bifurcation, associated with the greater horn of the hyoid bone.

Findings:

  • The patient's dissecting carotid artery aneurysm was directly linked to an elongated hyoid bone.
  • Despite the stroke, the patient experienced no permanent neurological deficits.

Implications:

  • This case underscores the necessity of evaluating adjacent bony structures, specifically the hyoid bone, in patients with carotid artery dissection or aneurysms.
  • Increased clinical awareness and diagnostic focus on anatomical variations of the hyoid bone may improve the prevention and management of carotid artery-related cerebrovascular events.

Keywords:
carotid dissecting aneurysmcase reportcontrast-enhanced computed tomographyhyoid bone

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