CTICasesRight coronary artery to coronary sinus fistula
Cite this case
[...]. Right coronary artery to coronary sinus fistula. CTICases. Published October 11, 2019. https://str-case-explorer.pages.dev/c/wepaf
Imaging findings
CT angiogram shows a markedly dilated, tortuous right coronary artery (RCA) that directly communicates with and drains into an enlarged coronary sinus, creating a large left-to-right shunt.
Key takeaways
Coronary artery fistulas are congenital anomalies that typically drain into low-pressure right-sided chambers or the coronary sinus. The feeding artery becomes dilated and tortuous over time, and can cause a myocardial steal phenomenon.
AI-assisted summary — may contain errors. Verify against the source video. Learn more
More from this webinar
- Effusive-constrictive pericarditis secondary to leukemiaPericardial
- Effusive-constrictive pericarditis in sickle cell diseasePericardial
- Unrepaired sinus venosus ASD and PAPVR in a heart transplant recipientCongenital
- Primary esophageal lymphomaNeoplastic
- Beta-thalassemia with extramedullary hematopoiesis and hemosiderosisMetabolic
- Descending necrotizing mediastinitis from cervical necrotizing fasciitisInfection
- Ruptured thoracoabdominal aortic aneurysmAorta & Arteries
- Incarcerated diaphragmatic liver herniaTrauma
See all cases from October 11, 2019 →
Related Coronary cases
- Left ventricular lateral wall aneurysm
- Hypoplastic left heart syndrome with coronary-left atrial fistula
- Coronary peri-arteritis in IgG4-related systemic disease
- Coronary artery aneurysm from childhood Kawasaki disease
- Coronary artery spasm mimicking high-grade stenosis on CTA
- Fractional flow reserve (CT-FFR) triage for coronary artery disease