Sarcoidosis masquerading as an acute coronary syndrome.

Sarcoidosis is a common multisystem granulomatous disease that affects 20 per 100,000 people in the world. Although primarily a pulmonary disease, sarcoidosis can affect multiple organ systems. Cardiac involvement of sarcoidosis is most commonly manifested as ventricular ectopy and arrhythmias; atrioventricular conduction disturbances, including complete heart block; congestive heart failure; and even may result in sudden death. Although myocardial infarction is most commonly the result of epicardial coronary artery disease, an infiltrative process such as sarcoidosis may simulate an acute coronary syndrome. Given the high prevalence of sarcoidosis, it is important to be aware of the myriad of cardiac manifestations of this infiltrative process.