Coronary arteriovenous fistula

Case contributed by Irina Haidzel
Diagnosis certain


History of myocardial infarction, coronary stenting (LAD, OM, R-PLB) .

Patient Data

Age: 70 years
Gender: Male

Axial CT, VRT images show a tortuous vessel arising from the right coronary artery, which passes anterior to the pulmonary artery and forms a network before it enters the main pulmonary artery. 

Findings are consistent with a coronary artery fistula (CAF).

Annotated image

Coronary arteriovenous fistula (white arrow) on axial arterial phase MIP CT. The MIP image nicely shows diffusion of the resulting contrast blush within the pulmonary artery.

Case Discussion

This findings are noticed incidentally at CT cardiac imaging for coronary stents visualization. 

In this case surgical correction was not indicated due to asymptomatic clinical presentation and elderly age.

CT follow-up was recommended.

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