Acute myocardial infarction is sometimes complicated in patients with coronary spastic angina. The mechanisms are known to be plaque rupture and thrombosis induced by spasm, and reduced coronary flow due to prolonged spasm. We describe the case of a 45-year-old woman with coronary spastic angina who had a complication of an acute myocardial infarction. A specimen obtained with thrombectomy was the disrupted coronary artery wall accompanied by massive intramural hemorrhage. The cause of the acute myocardial infarction was thought to be an embolism of the coronary arterial wall that was disrupted by spasm and intramural hemorrhage.
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