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Long linguofacial trunk with infrahyoid origin.
Răzvan Costin Tudose1, Mugurel Constantin Rusu1, Corneliu Toader2,3
1Division of Anatomy, Faculty of Dentistry, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania.
Anatomy & Cell Biology
|November 8, 2024
Summary
An uncommon linguofacial trunk (LFT), the joined origin of the lingual and facial arteries, was identified with unusual size and origin. This anatomical variation requires careful differentiation from the external carotid artery during imaging.
Area of Science:
- Anatomy
- Vascular Anatomy
- Radiology
Background:
- The linguofacial trunk (LFT) represents the common origin of the lingual artery (LA) and facial artery (FA).
- Variations in the origin and course of the LFT can impact surgical and diagnostic procedures in the head and neck region.
Observation:
- A computed tomography angiogram revealed an adult male with a notably large linguofacial trunk (LFT).
- This LFT originated unusually from the external carotid artery (ECA) before the greater hyoid horn, measuring 3.7 mm in diameter.
- The LFT followed an ascending path anterior to the ECA for 20.9 mm before branching into the LA and FA.
Findings:
- The study documented an uncommon anatomical variation of the linguofacial trunk (LFT) concerning its origin, length, and diameter.
- The external carotid artery (ECA) measured 3.4 mm in diameter, with the LFT arising from its lateral aspect.
- Bilateral elongated styloid processes extending to the oropharyngeal isthmus were also noted.
Implications:
- Radiologists and surgeons should be aware of this LFT anatomical variation to avoid misidentification with the external carotid artery (ECA).
- Accurate identification of the LFT is crucial for safe and effective head and neck interventions.
- Understanding such vascular anomalies aids in refining anatomical knowledge and improving clinical practice.
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