What is the most likely diagnosis?
- 49 year-old female undergoing cardiac CT for suspected coronary artery disease
Contrast-enhanced axial CT through heart
- Bicuspid aortic valve
- Left ventricular thrombus
- Left atrial myxoma
- Ostium primum atrial septal defect
- Sinus venosus atrial septal defect
Additional Images - Additional contrast-enhanced axial CT
Additional Images
Additional contrast-enhanced axial CT
Answer:
5. Sinus Venosus Atrial Septal Defect
More (Click Discussion Tab)
Sinus Venosus Atrial Septal Defect
General Considerations
- Atrial septal defects (ASD) represent 10-15% of congenital cardiac abnormalities
- Sinus venosus type of ASD accounts for 10% of ASDs and only 1% of all congenital heart lesions