Symptomatic abdominal bronchogenic cyst mimicking acute ischemic heart disease

A 57-year-old female patient presented with a symptomatic abdominal bronchogenic cyst that was associated with ECG changes. The patient's clinical presentation with chest pain, ST and T wave changes, and rate-related bundle branch block initially suggested a myocardial infarction. The ECG reverted to normal after the cyst was removed. The physiologic origins of these observations are unknown.