Answer to Last Tango in Paris
Correct answer is C, the location of the coronary sinus found in the atrioventricular sulcus. The sinus is at risk of injury during an atrio-septal defect repair in the exceptionally rare cases when a persistent left vena cava exists. The latter will drain into the sinus and can lead to a thrombus in the coronary sinus after the septal defect repair.
.
Answer to this question is based on material presented in lectures 11 of the Thorax Lecture Series.
= Location of r. coronary a.
= Location of Great cardiac vein
= Atrioventricular sulcus
= Superior vena cava
= Inferior vena cava