A 40-year-old African-American woman presented with atypical chest pain, an acute non-ST segment elevation myocardial infarction, and angiographic evidence for severe ostial vasospasm of the left main and right coronary arteries. Subsequently, she was diagnosed with hyperthyroidism and treated with antithyroid therapy and oral nitrates. Repeat angiography revealed resolution of the vasospasm; however, the chest pain recurred in the euthyroid state. Hyperthyroidism-associated coronary vasospasm is a rare disorder that characteristically causes angina in young Asian women and resolves with correction of hyperthyroidism. We present an atypical case of an African-American woman presenting with a myocardial infarction who developed recurrent angina while euthyroid.
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