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Related Concept Videos

Arteries of the Head and Neck01:26

Arteries of the Head and Neck

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The human body's intricate network of arteries ensures that every organ system receives the necessary oxygen and nutrients for optimal function. The arterial network in the head and neck region is particularly complex, providing vital blood flow to the brain, eyes, and other critical structures. Prominent arteries in this region include the internal carotid arteries and the vertebral arteries.
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The coronary arteries, originating from the ascending aorta, bifurcate from two sinuses located within the ascending aorta. Positioned just above the aortic semilunar valve, these sinuses house essential aortic baroreceptors and chemoreceptors, crucial for maintaining cardiac function. The left coronary artery and the right coronary artery branch off from the left posterior and anterior aortic sinuses, respectively.
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  1. Home
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  5. Chemical Sciences
  7. Inorganic Chemistry
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  11. Lacunar Stroke With Incidental Congenital Absence Of The Internal Carotid Artery: Importance Of Recognising A Rare Anatomical Variant.
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  3. Research Domains
  5. Chemical Sciences
  7. Inorganic Chemistry
  9. Inorganic Chemistry Not Elsewhere Classified
  11. Lacunar Stroke With Incidental Congenital Absence Of The Internal Carotid Artery: Importance Of Recognising A Rare Anatomical Variant.

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Lacunar stroke with incidental congenital absence of the internal carotid artery: importance of recognising a rare anatomical variant.

Woei Ling Lai1, Danushka Ratnayake2

  • 1Great Western Hospitals NHS Foundation Trust, Swindon, UK.

BMJ Case Reports
|December 31, 2025

View abstract on PubMed

Summary
This summary is machine-generated.

A rare case of congenital internal carotid artery (ICA) absence was found in a stroke patient. This vascular anomaly highlights the importance of neurovascular imaging for accurate stroke assessment and management.

Keywords:
NeuroimagingRadiologyStrokeVascular surgery

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Area of Science:

  • Neurology
  • Vascular Medicine
  • Radiology

Background:

  • Lacunar infarcts are common stroke types.
  • Congenital vascular anomalies can present incidentally.
  • Internal carotid artery (ICA) absence is a rare condition.

Purpose of the Study:

  • To report a case of incidental congenital internal carotid artery (ICA) absence in a patient with a lacunar infarct.
  • To emphasize the diagnostic significance of recognizing congenital ICA absence in neurovascular imaging.
  • To guide appropriate management and prevent misinterpretation in stroke assessment.

Main Methods:

  • Case report of a woman in her 50s presenting with a left lacunar infarct.
  • Neurovascular imaging to identify vascular anomalies.
  • Radiological confirmation of congenital ICA absence via hypoplastic bony carotid canal.

    • Main Results:

    • Incidental finding of congenital absence of the left internal carotid artery (ICA).
    • Cerebral perfusion was preserved despite the anomaly.
    • No conventional vascular risk factors were identified in the patient.

    Conclusions:

    • Congenital absence of the internal carotid artery (ICA) is a rare but significant vascular anomaly.
    • Recognition of congenital ICA absence on neurovascular imaging is crucial for accurate stroke assessment.
    • Proper identification prevents misdiagnosis and ensures appropriate patient management.