CTICasesCoronary Sinus Drainage Anomaly
Imaging findings
CT chest in a 27-year-old with congenital heart disease shows osteal atresia of the coronary sinus. Instead of draining into the right atrium, the coronary sinus drains anomalously into the left atrium, creating a right-to-left shunt.
Key takeaways
Coronary sinus osteal atresia is a rare anomaly where the coronary sinus fails to open into the right atrium. Venous drainage is typically redirected through a persistent left SVC or, less commonly, directly into the left atrium, creating a physiological right-to-left shunt.
AI-assisted summary — may contain errors. Verify against the source video. Learn more
More from this webinar
- Methyl Methacrylate EmbolismIatrogenic
- Pulmonary Histoplasmosis-Related BroncholithiasisInfection
- Rheumatoid Arthritis with Necrobiotic NodulesAutoimmune
- Pulmonary Alveolar ProteinosisOther
- Expiratory Collapse of Lower Lobe Cystic AirspacesILD
- Intra-aortic Balloon Pump MalpositionIatrogenic
- Bilateral Bronchogenic CystsCongenital
- Hemi-azygous Continuation of the IVCCongenital
See all cases from February 19, 2022 →