CTICasesRight coronary artery to coronary sinus fistula
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 leukemiaNeoplastic
- Effusive-constrictive pericarditis in sickle cell diseaseCongenital
- 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 aneurysmVascular
- Incarcerated diaphragmatic liver herniaTrauma
See all cases from October 11, 2019 →
Related Congenital cases
- Pulmonary vascular telangiectasias in sickle cell disease
- Tetralogy of Fallot with pulmonary atresia and MAPCAs
- Large mediastinal thymic cyst
- Systemic arterial supply to normal lung without sequestration
- Superior sinus venosus ASD and PAPVR
- Pulmonary cysts in autosomal dominant polycystic kidney disease (ADPKD)