Telltale T Waves

Although the patient’s electrocardiogram (ECG) contained a well-known marker for severe stenosis of the left anterior descending artery, it was essential that the work-up address diagnostic possibilities beyond the most conspicuous. A 43-year-old African American man presented with a 1-month history of progressive dyspnea on exertion. He had an unremarkable medical history and an excellent baseline exercise capacity.

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