CTICasesAnomalous Right Coronary Artery from the Left Sinus with Interarterial and Intramural Course
▶ Watch on YouTube — age-restricted, cannot embed here
Imaging findings
Coronary CT angiogram shows an anomalous origin of the right coronary artery (RCA) from the left coronary sinus. The anomalous RCA courses interarterially between the aorta and pulmonary artery, exhibiting severe slit-like narrowing at its proximal segment, indicative of an intramural course. Surgical exploration confirmed a tissue slip overlying the artery, which was treated via unroofing.
Key takeaways
Anomalous right coronary artery from the left sinus is a congenital anomaly that can be associated with myocardial ischemia, arrhythmia, and sudden cardiac death, especially during exercise. The risk of adverse events is significantly higher when there is an intramural component, where the artery is compressed within the aortic wall. Surgical unroofing is a preferred treatment method that relieves the compression by removing the overlying aortic tissue.
AI-assisted summary — may contain errors. Verify against the source video. Learn more
More from this webinar
- Cocaine-Associated Cardiomyopathy with Hydrostatic Pulmonary EdemaExposure
- Recurrent Spine Osteosarcoma with Pleural MetastasisNeoplastic
- High-Grade Pleomorphic Chest Wall Sarcoma with Pulmonary MetastasesNeoplastic
- Iatrogenic Pulmonary Artery Perforation and Chest Tube MalpositionIatrogenic
- Methotrexate-Induced Iatrogenic Immunodeficiency-Associated Lymphoproliferative DisorderNeoplastic
- Diffuse Alveolar Hemorrhage secondary to Antiphospholipid Antibody SyndromeAutoimmune
- Acute Pulmonary Embolism and Pulmonary Infarction on MRAVascular
- Digital Radiography Artifacts: Grid Misalignment and BackscatterArtifact
See all cases from June 6, 2014 →