At this rare Variant of a left Coronarartery completely arising from the right, the Strenose lain in a lateral branch is met in RAO position orthograd and not sufficiently recognizable.
Here is a rare variant of coronary artery supply: the entire left coronary artery has its origin on the right and then turns towards the left ventricle preaortically. Here the first lateral branch shows a subtotal stenosis close to the exit.
