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The Arch of Aorta01:10

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An Orthotopic Mouse Model of Anaplastic Thyroid Carcinoma
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Published on: April 17, 2013

Anomalous superior thyroid artery.

Vandana Mehta1, Rajesh K Suri, Jyoti Arora

  • 1Department of Anatomy, Vardhaman Mahavir Medical College and Safdarjung Hospital, New Delhi 110029, India. drvandanamehta@gmail.com

Kathmandu University Medical Journal (KUMJ)
|May 22, 2012
PubMed
Summary
This summary is machine-generated.

An unusual thyroid artery variation showed a dominant left superior thyroid artery supplying both thyroid lobes. This anatomical finding is crucial for neck surgeons to prevent damage to the external laryngeal nerve during procedures.

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Area of Science:

  • Anatomy
  • Vascular Anatomy
  • Surgical Anatomy

Background:

  • The superior thyroid artery's distribution is critical for neck surgeons due to its proximity to the external laryngeal nerve.
  • Variations in thyroid gland arterial supply can pose surgical challenges.

Observation:

  • A routine dissection of an adult male cadaver revealed an absence of the right superior thyroid artery.
  • The left superior thyroid artery originated from the left common carotid artery.

Findings:

  • The left superior thyroid artery demonstrated a dominant distribution pattern, supplying the superior aspects of both the left and right thyroid lobes.
  • The artery maintained a typical anatomical relationship with the left external laryngeal nerve.
  • No unusual variations were noted in the inferior thyroid arteries.

Implications:

  • Understanding this arterial variation is vital for neck surgeons to safely ligate anomalous vessels.
  • Awareness of such anatomical variations helps prevent iatrogenic injury to the external laryngeal nerve during thyroid surgery.