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Thyrolingual trunk arising from the common carotid bifurcation
S D Jadhav1, M P Ambali, R J Patil
1Department of Anatomy, Krishna Institute of Medical Sciences Deemed University, Karad, Maharashtra 415110, India. drsurekha_32@yahoo.in
Singapore Medical Journal
|December 14, 2011
Summary
A rare thyrolingual trunk variation was found originating from the right common carotid artery bifurcation. This anatomical finding, observed during a medical dissection, highlights unusual carotid artery branching patterns.
Area of Science:
- Anatomy
- Vascular anatomy
- Surgical anatomy
Background:
- The common carotid artery (CCA) typically bifurcates into the internal and external carotid arteries.
- Variations in the branching patterns of the CCA and its branches are documented but uncommon.
- The thyrolingual trunk is a rare variant, usually arising from the external carotid artery.
Observation:
- A unique origin of the thyrolingual trunk was identified during a routine cadaveric dissection.
- The thyrolingual trunk arose directly from the bifurcation point of the right common carotid artery.
- This anomalous vessel coursed medially and inferiorly before branching into the lingual and superior thyroid arteries.
Findings:
- The study documented a rare anatomical variation: a thyrolingual trunk originating from the CCA bifurcation.
- This specific variation was observed unilaterally on the right side, with no similar anomaly noted on the left.
- The thyrolingual trunk's unusual origin from the CCA bifurcation is a significant deviation from typical anatomy.
Implications:
- Understanding such rare variations is crucial for surgeons performing head and neck procedures.
- Awareness of anomalous carotid artery branching can prevent intraoperative complications.
- This case contributes to the anatomical knowledge base, aiding in medical education and diagnostic imaging interpretation.
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