Related Experiment Video
Updated: Apr 30, 2026
10:02
Visualization and Analysis of Pharyngeal Arch Arteries using Whole-mount Immunohistochemistry and 3D Reconstruction
Published on: March 31, 2020
9.0K
Arteries get confused: an arch variation
Summary
A rare aortic arch anomaly, truncus bicaroticus, was found in a 54-year-old female. This previously unreported variant involves unusual origins of the carotid, vertebral, and subclavian arteries.
Area of Science:
- Vascular anatomy
- Embryology
- Medical imaging
Background:
- Aortic arch anomalies are rare congenital defects.
- Understanding vascular variations is crucial for diagnosing neurological symptoms.
Observation:
- A 54-year-old female presented with right-sided numbness.
- Magnetic resonance angiography (MRA) was performed for evaluation.
Findings:
- MRA revealed a truncus bicaroticus.
- Specific anomaly details: right common carotid artery (CCA) originating from the right vertebral artery, right subclavian artery as the final branch of the descending aortic arch, and the left vertebral artery originating from the aortic arch.
Implications:
- This case highlights a previously unreported aortic arch variant.
- Reviewing embryologic mechanisms aids in understanding such anomalies.
- Clinical significance for neurological presentations requires further investigation.
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