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Unusual thyroid gland vascularization.

Gunther Windisch1

  • 1Institute of Anatomy, Medical School Graz, Graz, Austria. gunther.windisch@meduni-graz.at

The Journal of Craniofacial Surgery
|September 4, 2004
PubMed
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An unusual thyroid gland vascularization was discovered, featuring a duplicated artery originating from the thyrocervical trunk. This anatomical variation provides dual blood supply to the thyroid lobe, impacting surgical considerations.

Area of Science:

  • Anatomy
  • Vascular Surgery

Background:

  • Thyroid gland vascularization is typically supplied by the superior and inferior thyroid arteries.
  • Variations in thyroid vascular anatomy can occur but are infrequently documented.

Observation:

  • Anatomical dissection revealed an atypical vascular pattern in the right lobe of a human thyroid gland.
  • The thyrocervical trunk gave rise to the standard inferior thyroid artery and an additional artery.

Findings:

  • The accessory artery bifurcated, supplying the inferior constrictor pharyngeal muscle and esophagus via its upper branch.
  • The lower branch coursed to the trachea, anastomosing with the inferior thyroid artery, forming a dual supply to the thyroid lobe.

Implications:

  • This finding highlights the importance of understanding vascular anomalies in thyroid surgery.

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  • Such variations may influence surgical planning and risk assessment for procedures involving the neck region.