Compression of anomalous right coronary artery between the great vessels.

Coronary angiography (Figure-1) and computerized tomographic angiography (CTA) (Figure-2) of a 61-year-old man with exertional angina demonstrated proximal compression by the great vessels of an anomalous right coronary arising from the left main trunk. A significant left anterior descending lesion was also present. The patient underwent uneventful bypass surgery.