Spontaneous coronary artery dissection: An often unrecognized cause of acute coronary syndrome.

Spontaneous coronary artery dissection (SCAD), an intramural hemorrhage leading to a separation of the layers of the coronary artery wall, is traditionally considered a rare condition associated mainly with pregnancy but is likely underdiagnosed in other settings. Its recognition by coronary angiography is key. Medical management is usually indicated, except in certain circumstances in which coronary artery bypass grafting or percutaneous coronary intervention should be considered.