Your choice: Coronary thrombosis
Coronary thrombosis is usually the result of atherosclerotic plaque rupture.
While not the cause of stable angina pectoris, the formation of a non-occlusive platelet-rich, or white clot, may result in unstable angina pectoris.
An occlusive thrombus, or red clot, precipitates the majority of ST-segment elevation myocardial infarctions.