Vieussens' arterial ring with pulmonary fistula diagnosed by coronary computed tomography angiography (CCTA). Case report.
DOI:
https://doi.org/10.37615/retic.v9n1a7Keywords:
Vieussens' arterial ring, computed tomography angiography, coronary vessels, coronary diseaseAbstract
The Vieussens arterial ring (VAR) is a remnant coronary vascular network found in almost half of the population. Its presence in healthy patients is not clinically significant, as it does not carry blood flow; however, in patients with cardiovascular diseases, mainly obstructive types, it provides significant support and a source of collateral irrigation. We present the case of a 53-year-old asymptomatic male patient referred for coronary angiotomography evaluation after a positive exercise test for ischemia associated with episodes of ventricular tachycardia. The study revealed, as an incidental finding, a Vieussens arterial ring with a fistula to the pulmonary artery, allowing precise definition of the vascular pathway and its relationship to adjacent structures. Coronary artery angiotomography has become an important study for its detection and characterization due to its high spatial resolution and great anatomical detail, surpassing coronary angiography in several aspects
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Copyright (c) 2026 Pamela Tufiño Sánchez, Isabel Maldonado-Jaimes
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