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A Case of Duplicated Right Vertebral Artery
Mayuko Motomura1, Koichi Watanabe2, Yoko Tabira2
1Medical Student, Kurume University School of Medicine.
The Kurume Medical Journal
|March 20, 2018
Summary
A rare duplicated right vertebral artery was discovered in a cadaver. This anatomical variation involved two arteries arising from the neck and merging, offering insights into vascular development.
Area of Science:
- Anatomy
- Embryology
- Vascular Biology
Background:
- Vertebral arteries are crucial for supplying blood to the brain.
- Anatomical variations in the vertebral arteries can impact surgical procedures and neurological function.
- Understanding these variations is essential for medical education and clinical practice.
Observation:
- A unique case of a duplicated right vertebral artery was identified during a medical dissection course.
- The anomaly was observed in a 91-year-old female cadaver.
- The duplicated artery presented with two distinct proximal origins and entry points into the cervical vertebrae.
Findings:
- The duplicated right vertebral artery originated from the brachiocephalic artery's divergence.
- One segment entered the transverse foramen of the fourth cervical vertebra (proximal), while the other entered the sixth (distal).
- These two segments rejoined to form a single vertebral artery before ascending to join the basilar artery.
Implications:
- This case highlights the importance of recognizing rare anatomical variations in the vertebral artery.
- It provides a valuable teaching example for medical students regarding cerebrovascular anatomy.
- Further investigation into the embryological basis of such duplications is warranted to understand potential clinical significance.
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