Spontaneous coronary artery dissection (SCAD) is a rare cause of acute myocardial infarction. The disease is usually seen in young-middle aged women and leads to sudden death in the majority of cases. In survived patients, diagnosis of SCAD has been made with coronary anjiography. Involvement of left main coronary artery (LMCA) is very unusual. We describe on a case of SCAD involving the LMCA in a young woman presenting with an acute myocardial infarction and cardiogenic shock status. There were no risk factors for coronary artery disease and no evidence of atherosclerosis on angiography. Coronary angiography revealed dissection of the LMCA that extended into the anterior descending and circumflex coronary arteries. The dissection was successfully treated with primary coronary artery stenting. The patient was discharged without complication. There was no problem in the first evaluation at the end of the first of the month.
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