Acute myocardial infarction secondary to thyrotoxicosis.

Angina and myocardial infarction have been reported in hyperthyroidism with normal coronary arteries, presumably secondary to thyroid-induced coronary artery spasm. We report the case of a very young female patient with an atypical presentation of acute myocardial infarction mimicking pulmonary embolization secondary to thyrotoxicosis. Hyperthyroidism should be kept in mind in younger patients in the differential diagnosis of coronary artery disease.