Every imaging test i have done finds something else bizarre.
Never heard of an extra artery that just slides around the heart because it does not have its own groove. A significant portion of people have it. No idea why God decided some people need it. Doesnt really cause a problem unless it gets blocked
I know imaging on my late mother discovered a number of abnormalities that no one suspected and seemed to make no difference during her life. Best to not have excessive imaging!